2019 Navy Destroyer Drone Swarm

Theoretical Alignment

None of the site's three standing theoretical frameworks fits this case well, and that is itself the most important thing to understand about it. The best-supported explanation for nearly every contact — confirmed by the Navy's own Deputy Director of Naval Intelligence in 2022 — is mundane human technology: small unmanned aircraft. That leaves Extraterrestrial and Interdimensional alignment negligible. Psycho-Social scores modestly higher only because one specific, well-documented strand of the case — the "pyramid"-shaped night-vision video that became the most famous single artifact of the whole affair — turned out to be a camera-aperture illusion (bokeh) rather than a true structured craft, a textbook example of perception and instrumentation interacting to manufacture a shape that was never really there. The remainder of the case, radar- and FLIR-corroborated contacts tracked by multiple independent ships over weeks, is not primarily a perceptual phenomenon; it is a real, still-unattributed pattern of technological intrusion.

Background

By the summer of 2019, U.S. Navy encounters with unidentified aircraft were drawing new official attention. The 2004 "Tic Tac" encounter involving the USS Nimitz, off Southern California and Baja California, had become the best-known UAP case of the century after The New York Times's December 2017 revelations about the Advanced Aerospace Threat Identification Program, and the "Gimbal" and "GoFast" videos, filmed in 2015 by F/A-18 crews from the USS Theodore Roosevelt off the U.S. East Coast, had been published the same month. In April 2019 Bryan Bender of Politico reported that the Navy was drafting new guidelines for pilots and other personnel to report unexplained aircraft.

It was against this backdrop that several Navy ships operating in the offshore training areas around San Clemente and San Nicolas Islands began logging unidentified aircraft. The War Zone's reconstruction from deck logs and civilian AIS ship-tracking data identifies the destroyers USS Kidd (DDG-100), USS Rafael Peralta (DDG-115), USS Russell (DDG-59), USS John Finn (DDG-113) and USS Paul Hamilton (DDG-60); Navy briefing material released in 2022 adds the destroyer USS Ralph Johnson (DDG-114), the cruiser USS Bunker Hill (CG-52), the littoral combat ships USS Gabrielle Giffords and, in the same weeks, USS Omaha (LCS-12) — whose own, separately cataloged encounter with a spherical object is documented at USS Omaha Underwater Object — and the destroyer USS Pinckney. The Aegis destroyers and the cruiser carry AN/SPY-1 radar and powerful electro-optical sighting systems, and each ship can call away a SNOOPIE (Ship Nautical Or Otherwise Photographic Interpretation and Exploitation) team of sailors with cameras to document unknown contacts.

None of these ships had any reason to expect an extended encounter with unidentified small aircraft. Commercial and hobbyist drone technology in 2019 was well understood by Navy officers: consumer multirotor drones of the era typically carried flight endurance of 20 to 30 minutes and effective control ranges measured in a few miles at most, figures every bridge and Combat Information Center (CIC) watch officer would have known from general awareness of the fast-growing hobbyist and commercial drone market. That baseline expectation is what made the specific, repeated behavior reported across the following two-plus weeks so operationally alarming: multiple simultaneous contacts, sustained flight far beyond consumer endurance limits, and a willingness to approach and shadow warships at close range and low altitude, at night, in a security-sensitive military exercise area.

Complete Timeline

Date / Time	Event
Mar. 30 & Apr. 24, 2019	Earlier swarm events, revealed in 2022: USS Harpers Ferry reports as many as eight drones over the ship at about 500 feet, assessed in a draft statement as "conducting collection operations," and USS Zumwalt reports six drones crossing its flight deck in a "consistent pattern."
Jul. 14, 2019, ~2200	USS Kidd logs the first sighting of two UAVs and enters restricted communications; USS Rafael Peralta activates its SNOOPIE team, and USS John Finn logs a possible UAS with red flashing lights crossing the ship at about 1,000 feet. Peralta's log describes a white light hovering over its flight deck while the ship made 16 knots in visibility under one nautical mile; by then the encounter had lasted over 90 minutes.
Jul. 15, 2019, 20:39–~23:30	USS Rafael Peralta deploys its SNOOPIE team at 8:39 p.m. and USS Kidd at about 9:00 p.m.; Kidd logs "Multiple UAVs around ship," and Peralta later records two and then four UAVs. The cruise ship Carnival Imagination radios Peralta that the drones are not its own and that it can see five or six. Around the same time a Navy briefing slide, matched by an email of July 15, records the bulk carrier Bass Strait near USS Paul Hamilton, which was heading for a port call in Long Beach, during an encounter of just under four hours, assessing that it was "likely conducting surveillance on Navy vessels using drones."
Jul. 16–17, 2019	USS Paul Hamilton's "UAP Brief" slide records an encounter from 7:56 to 10:39 p.m. local on July 16: one UAS a nautical mile out, then two (one falling into the water), several with flashing red lights by 8:26, a "UAS swarm" at 8:50, one overhead at about 2,000 feet at 9:11, after which the group turned away at about 60 knots before returning. On July 17 USS Russell reports three unknown UAS about 62 nautical miles southwest of San Nicolas Island over about an hour, one hovering at about 700 feet; a Russell night-vision video from July 17, released in 2022, has its SNOOPIE team leader reporting "four probable unidentified drones" at a range of a thousand yards. Navy investigators, NCIS, the Coast Guard and the FBI begin inquiries; by July 18 the reports are going to the Chief of Naval Operations.
Jul. 20–24, 2019	USS Russell holds counter-UAS exercises, including one firing its 5-inch gun (with at least one misfire); on July 21 USS Paul Hamilton assesses a group of drones as "local fisherman operating personal quadcopters"; on July 23 a SNOOPIE team spots a drone at an elevation of about 400 feet; on July 24 Russell's log first mentions "ghostbusters," apparently portable counter-drone jammers, in a brief exercise. An admiral is logged arriving aboard Russell on July 22 and leaving on July 31.
Late Jul. 2019	USS Kidd logs a SNOOPIE deployment for UAVs from about 1:20 to 1:52 a.m. on July 25. A few days after July 21, USS Gabrielle Giffords sees four drones orbit the ship while its own MQ-8B Fire Scout is flying; three small boats nearby include a fishing vessel.
Jul. 30, 2019 (early hours)	USS Russell calls away its "ghostbusters" and SNOOPIE team around midnight; its log entries for the next hours are redacted under a "technical military data" exemption, the first such redactions in the logs The War Zone reviewed, until a 3 a.m. entry to "stand down DRAKE team to conserve battery power." Russell's briefing slide records two groups of lights over about three hours, five drones approaching, several directly overhead, an unidentified pleasure craft nearby that never answered, and radio-frequency data captured. USS Kidd's SNOOPIE team is out from 2:16 to 3:27 a.m. USS Paul Hamilton reports four UAS from 0240 to 0530 local, as close as 200 yards; at 0326 and 0332 drones shine "what appeared to be a searchlight or photographic device" on its bow and bridge; three are identified visually as quadcopters; no countermeasures are used. USS Bunker Hill mans its SNOOPIE and Small Craft Action Team (SCAT).
2020	Documentary filmmaker Dave Beaty first brings the USS Kidd incident to light.
Mar. 23–24, 2021	The War Zone journalists Adam Kehoe and Marc Cecotti publish the first major reconstruction of the case (March 23), built from FOIA'd deck logs and investigators' emails cross-referenced against hundreds of gigabytes of civilian Automatic Identification System (AIS) ship-location data; Forbes contributor David Hambling reports on it the next day.
Apr. 5, 2021	Chief of Naval Operations Admiral Michael Gilday, asked at a Defense Writers Group event in Washington whether the Navy had identified the drones, answers: "No, we have not." Asked whether they were extraterrestrial, he says he has "no indications at all of that," and that the sightings "still are being analyzed."
Apr. 2021	Filmmaker Jeremy Corbell releases night-vision video, attributed to USS Russell, of triangular or "pyramid"-shaped lights over the ship (publicized with journalist George Knapp); the Pentagon confirms that Navy personnel took it.
Dec. 17, 2021 – Jan. 14, 2022	The War Zone reports that sightings continued through late July, with the 5-inch gun exercise, the "ghostbusters" and the redacted July 30 logs, then identifies the DRAKE counter-drone jammer in Russell's log.
Feb. 2022	The War Zone and other FOIA requesters receive the unredacted USS Paul Hamilton briefing slide and its low-resolution FLIR frame through separate requests (Feb. 10). Separately, the Navy's Office of the Judge Advocate General grants John Greenewald Jr.'s appeal on February 16, finding that U.S. Pacific Fleet could not say how its original search had been done and ordering a new search, with status reports every 15 days.
May 17, 2022	The House Intelligence Subcommittee on Counterterrorism, Counterintelligence, and Counterproliferation holds the first open congressional hearing on UAP in more than 50 years. Deputy Director of Naval Intelligence Scott Bray plays one of the 2019 videos, says it had been "unresolved for several years" until comparison with a later swarm "off a different coast," and testifies that the Navy is "reasonably confident" the objects were unmanned aerial systems, the "triangular appearance" being "a result of light passing through the night vision goggles, and then being recorded by an SLR camera."
Jun. 10 & 15, 2022	The Navy releases to Kehoe and Cecotti briefing slides and photographs from more than half a dozen incidents, including the Bass Strait assessment, the fishermen assessment, Bunker Hill's count of up to 11 drones with radar tracks up to 21,000 feet, and the March and April events, followed on June 15 by five unclassified videos: two from USS Russell (July 17 and July 30), two from USS Paul Hamilton (July 30 and the Bass Strait), and one from USS Ralph Johnson. A June 16 update notes that dark dots in the Bass Strait photographs are more likely part of the ship than drones.
Oct. 14, 2022	The War Zone publishes 35 Pacific Fleet drone-incident reports, including USS Paul Hamilton's July 30–31, 2019 report of drones shining a light on its bridge.

The First Contacts: USS Kidd and USS Rafael Peralta

The night of July 14, 2019 set the pattern for everything that followed. Around 10 p.m., USS Kidd logged two UAVs, and within minutes it entered a condition of restricted communications and warned USS Rafael Peralta, which activated its own SNOOPIE team; USS John Finn logged a possible UAS with red flashing lights crossing the ship at about 1,000 feet and switched off its AIS transponder. The most striking entry is in Peralta's log: a white light hovering over the ship's helicopter deck, matching the destroyer's 16 knots at night in visibility of less than a nautical mile. By that point, The War Zone noted, the encounter had lasted over 90 minutes, longer than typical commercial quadcopters can fly. (Some later summaries, including earlier versions of this page, transferred the flight-deck hover and the 90 minutes to USS Kidd; the logs place the hover on Peralta, and the 90 minutes is the length of the encounter.) Investigators' first suspect was the research vessel Alguita, which carried a DJI Phantom 4 with a 28-minute flight time; its owners denied flying, and the investigators kept looking.

The very next night, July 15, USS Rafael Peralta became the second ship to report contacts, deploying its own SNOOPIE visual-identification team at 8:39 p.m. local time. Over the roughly three hours that followed, observers logged as many as four drones shadowing the ship simultaneously, again with no clear explanation for how a hobbyist could sustain that level of coordinated, multi-platform presence through the night. Corroboration came from an unexpected source: the civilian cruise liner Carnival Imagination, transiting the area independently of the Navy exercise, radioed that it, too, could see five or six drones flying around the destroyers — an observation made by crew with no stake in the Navy's investigation and no reason to exaggerate what they saw, which meaningfully strengthens the case that real, physical objects were present rather than a purely internal misperception confined to keyed-up watchstanders.

USS Paul Hamilton and the July 17 FLIR Slide

The single most detailed sequence in the entire case comes from USS Paul Hamilton's encounter on the evening of July 16, preserved in a one-page briefing slide that the Navy's FOIA coordinator titled "UAP Brief." The War Zone and other requesters received it in fully unredacted form in February 2022. It begins at 7:56 p.m. local, about ten minutes after the destroyer stopped broadcasting on AIS, with one UAS about a nautical mile away. Twenty minutes later two were seen, and one fell into the water. By 8:26 p.m. several were visible, with flashing red lights; at 8:50 the slide notes a "UAS swarm"; at 9:11 one was directly overhead at about 2,000 feet, and a minute later the group turned away at about 60 knots, only for UAS to be seen behind the ship eight minutes later. The episode ended at 10:39 p.m., 2 hours and 49 minutes after it began. Oddly, Paul Hamilton's deck log for that evening shows nothing unusual.

The slide also carries the only piece of imagery the Navy has ever released of the objects themselves: a single forward-looking infrared frame, of extremely low resolution, showing three indistinct blurs with no discernible shape, structure, or identifying feature. It is, by any honest description, an anticlimactic image relative to the scale of the encounter it documents — a genuinely informative data point in its own right, since it demonstrates that even a modern Aegis destroyer's dedicated FLIR imaging system, aimed directly at the objects during an active encounter, produced nothing better than an unresolvable blur. That same night, USS Russell's SNOOPIE team leader can be heard on a separate night-vision recording narrating "four probable unidentified drones" at approximately 1,000 yards — the raw footage that would later be leaked, misinterpreted online as showing rigid pyramidal craft, and ultimately explained by the Pentagon as a camera artifact (see "The Leaked 'Pyramid' Video" below).

Countermeasures: Guns, Jammers, and the July 30 Redactions

In the second half of July the ships began drilling against the contacts. On July 20 USS Russell held a counter-UAS exercise and later that day another in which it fired its 5-inch gun, logging at least one misfire; these were exercises, not engagements of a drone. On July 23 a SNOOPIE team logged a drone at an elevation of about 400 feet, and on July 24 Russell's log first mentions "ghostbusters," a slang term for man-portable counter-drone radio jammers, in an exercise lasting about eight minutes. Only Russell's logs mention them, and a later entry names Northrop Grumman's DRAKE backpack jammer. An email of July 14 records that USS Ralph Johnson had no "DRAKE or other C-UAS equipment" at the time. None of these countermeasures is documented as having downed a drone or recovered any wreckage.

The early hours of July 30 produced both the richest and the most heavily redacted documentation in the case. Russell called away its "ghostbusters" and SNOOPIE team around midnight, and its log entries for the following hours are redacted under an exemption for technical military data, the first significant redactions and the only use of that exemption in the hundreds of pages of logs The War Zone reviewed (the same exemption was applied to the legend of an earlier Paul Hamilton map). At 3 a.m. the log resumes: "stand down DRAKE team to conserve battery power." Russell's briefing slide, released in 2022, records two groups of lights over about three hours, five unknown drones approaching, several flying directly over the ship, and an unidentified pleasure craft nearby that never answered a standard warning read over the radio; the logs record radio-frequency data captured from the drones. USS Kidd's SNOOPIE team was out from 2:16 to 3:27 a.m., though Kidd reported no visual sighting. USS Paul Hamilton reported four UAS from 0240 to 0530 local, as close as about 200 yards off the bow and both beams. At 0326 one was "flashing the bow and bridge of PHM with what appeared to be a searchlight or photographic device"; at 0330 one with four white lights and a flashing red light hovered about 200 yards above the ship; and at 0332 another, showing no lights, again shined the bow and bridge. Three were identified visually as quadcopters, no countermeasures were used, and the Navy judged there was no impact on the ship's missions. Paul Hamilton's draft public-affairs statement called the drones' behavior dangerous, while USS Ralph Johnson's draft statement for an earlier incident had called the drones' approach "safe and professional." USS Bunker Hill manned its SNOOPIE and Small Craft Action Team.

The Leaked "Pyramid" Video and Its Official Explanation

The single image most people associate with this case is not the low-resolution FLIR blur from the Paul Hamilton slide, but night-vision video showing several triangular or "pyramid"-shaped lights apparently hovering above USS Russell. Corbell released it in April 2021, and Knapp publicized it with him — the same pairing responsible for the leaked USS Omaha sphere footage from the same month and waters. The Pentagon confirmed that Navy personnel had taken the videos but did not say where or when, or what they showed.

The explanation came at the May 17, 2022 congressional hearing. Deputy Director of Naval Intelligence Scott Bray told the House Intelligence subcommittee that the footage had been "unresolved for several years," until the Navy compared it with night-vision imagery and other data from a later drone swarm "off a different coast." He said "the triangular appearance is a result of light passing through the night vision goggles, and then being recorded by an SLR camera," and that the Navy was "reasonably confident" the objects were unmanned aerial systems. Independent analysts, notably Mick West of Metabunk.org, had reached the same bokeh explanation in April 2021, shortly after the video leaked. Separately, Skeptoid's Brian Dunning reported that West had used FlightAware to trace one of the most intense reports, from USS Russell on July 15, to a line of incoming airliners passing over the ship's reported position, which from the ship would have looked like hovering lights.

The Black Vault, FOIA, and the Fight for the Full Record

Much of what is publicly known about this case exists only because of a sustained, multi-year Freedom of Information Act effort. Adam Kehoe and Marc Cecotti of The War Zone filed the initial requests that produced the deck logs and investigators' emails, and cross-referenced them against civilian AIS ship-tracking data to independently verify vessel positions and rule out simple errors in the ship's own self-reported location — a methodologically serious step that goes well beyond simply accepting the Navy's paperwork at face value. Separately, John Greenewald Jr. of The Black Vault filed his own FOIA requests for photographs, timeline slides, and deck logs, and on February 16, 2022 won an appeal in which the Navy's Office of the Judge Advocate General found that U.S. Pacific Fleet "had no knowledge of the search terms that were used or how the search was otherwise conducted," and ordered a new search with status reports every 15 days. The unredacted Paul Hamilton slide itself reached The War Zone and other requesters through separate requests at about the same time. The War Zone also won appeals against redactions in the ship logs, which revealed the radio-frequency data captured on July 30. Across these efforts the pattern is consistent: initial Navy disclosures were incomplete or over-redacted, and materially more information emerged only through persistent FOIA requests and appeals.

Key Witnesses

The Five Observables Assessment

The Five Observables framework is applied to the performance characteristics reported in this case:

Assessment: This case scores low across the Five Observables framework, and consistently so — which is itself a meaningful data point rather than a gap in the record. No witness or sensor ever reported anti-gravity lift, transmedium (air-to-water or water-to-air) transition, or genuinely hypersonic speed; the fastest documented departure, roughly 60 knots (about 69 mph), is well within conventional small-aircraft performance. "Instant Acceleration" and "Low Observability" are rated speculative rather than absent only because several logged departures were abrupt and because the objects were never successfully tracked to a recovery point or identified operator despite an active, multi-ship, multi-agency effort — but that evasiveness reads much more plausibly as deliberate operator behavior (departing before an approaching countermeasure or visual-ID team could close the distance) than as an exotic low-observable airframe defeating a modern Aegis destroyer's radar and FLIR suite, which the July 17 briefing slide's unresolvable FLIR blur suggests was never seriously challenged to begin with.

Evidence Assessment

Why "Disputed"

This case earns a DISPUTED rating because its two halves point in genuinely different directions, and neither can simply be waved away. The underlying pattern of contacts is exceptionally well corroborated by the standards of this site: contemporaneous, FOIA-obtained deck logs (not after-the-fact recollection) from at least six independent ships, cross-checked against civilian AIS ship-tracking data, an official Navy briefing slide with a timestamped minute-by-minute account, five Navy-released videos, and on-record acknowledgment from the service's own top officer that the drones were never identified. Few cases on this site carry this volume of genuinely contemporaneous institutional documentation.

Against that, the case's basic category has been substantially resolved, and resolved toward the mundane end of the spectrum. The Department of Defense's own May 2022 congressional testimony affirmed these were human-made drones, and both the Pentagon and an independent skeptical analyst separately traced the case's single most viral artifact — the "pyramid" video — to an optical artifact rather than a genuine structured craft. That is a materially different profile from a case where the observed performance itself remains scientifically unexplained; here, the open question is narrower and more mundane: who was flying the drones around Navy ships for more than two weeks, and why, not what kind of physical object was involved. Even that question is partly answered: Navy documents attribute at least one group to local fishermen and assess that a commercial bulk carrier was likely conducting drone surveillance, although the operators of the most serious incidents were never publicly identified. A "drone swarm" that is officially conceded to be drones, however well-documented and however unresolved the attribution, cannot be scored as high as a case where the craft's fundamental nature remains genuinely contested. Disputed — strong institutional corroboration of the pattern, but a leading, officially endorsed conventional category for the objects themselves, with the real mystery confined to who built and flew them.

Sensor & Instrumentation Detection Profile

The task group's ships carried some of the Navy's most capable surface-combatant sensor suites: AN/SPY-1 phased-array radar and the Aegis combat system aboard every Arleigh Burke-class destroyer involved, forward-looking infrared (FLIR) optics used to produce the single released frame from the July 17 USS Paul Hamilton briefing slide, and handheld night-vision goggles paired with SLR cameras used by SNOOPIE visual-identification teams, which produced the leaked USS Russell footage later explained as a bokeh artifact. Civilian Automatic Identification System (AIS) transponder data, reconstructed after the fact by The War Zone's journalists, provided an independent check on the Navy's own reported ship positions. The released briefing slides do record radar: Bunker Hill's AN/SPY-1 held "valid tracks" of the drones up to 21,000 feet and captioned them "Quadcopter style UAS," and Ralph Johnson logged intermittent radar tracks of at least four UAS. Despite this sophisticated sensor array, the released imagery of the objects — the FLIR frame, a few slide photographs and five short videos — resolves no detail of any drone, and no raw radar data has been made public.

The counter-drone response generated a smaller record of its own. USS Russell's 5-inch gun firing on July 20 was a counter-UAS exercise, not an engagement of the contacts. The man-portable "ghostbuster" jammers, first logged on July 24 and apparently including Northrop Grumman's DRAKE backpack, appear only in Russell's logs; DRAKE was designed against small "Group 1" drones flown on continuous radio control. During the July 30 encounter Russell's logs record radio-frequency data captured from the drones, and its DRAKE team was stood down at 3 a.m. "to conserve battery power." None of the released records shows a confirmed hit or a disrupted control link.

Environmental & Geospatial Context

The encounters took place over open water in the Navy's offshore operating areas around San Clemente and San Nicolas Islands (including Warning Area W-291), within roughly 100 miles of Los Angeles and San Diego; exact positions have not been released, and USS Russell's July 17 report puts that encounter about 62 nautical miles southwest of San Nicolas Island. The logs describe visibility under one nautical mile on July 14, and The War Zone notes fog in the region on July 16. The Moon was 97% lit and about 30° up in the south-southeast at 10 p.m. on July 14, full on July 16, and a 4% crescent below the horizon during the early hours of July 30 (JPL Horizons). Inbound air traffic to Southern California's airports crosses the area, which bears on the airliner identification above. The waters also carry civilian shipping: AIS data placed the bulk carrier Bass Strait near the northern edge of the July 14 encounter area, close to USS Paul Hamilton, the tanker Sigma Triumph near the destroyers, and the research catamaran Alguita off San Clemente Island.

Observer Credibility & Occupational Profile

The case's observer pool is, on paper, about as credentialed as this site's methodology can score: professional U.S. Navy watchstanders, radar and CIC operators, and dedicated SNOOPIE/SCAT visual-identification teams — personnel specifically trained and tasked to identify unknown aircraft — spread across at least six independent warships over more than two weeks, with contemporaneous logging rather than after-the-fact recollection, and an independent civilian corroboration from an unrelated cruise ship. Their collective, cross-corroborated pattern of observation is far stronger than any single witness account. The genuine limitation is that, per the Skeptoid critique the site's own research surfaced, no amount of training fully overcomes the physical constraint that an observer cannot reliably judge the range, size, or true shape of a point-source light at night without independent triangulation — a limitation the "pyramid" video's bokeh-artifact explanation demonstrates concretely, since even trained SNOOPIE personnel narrating in real time described what they saw as structured triangular craft, not a camera artifact, until outside optical analysis explained it after the fact.

Physical & Material Assays

No physical evidence of any kind exists in this case. Despite live gun fire, RF jamming, and a dedicated electronic-warfare deployment over more than two weeks, no drone was ever downed, recovered, boarded, or physically examined by any Navy or FBI investigator. There is no wreckage, no component, no fragment, and no material sample of any kind to test — a genuinely informative absence given the scale and duration of the active countermeasure effort, and one this case file states plainly rather than working around. See Material Analysis below for a fuller discussion of what the case's actual physical evidence — imagery and video, rather than trace material — does and does not show.

Historical Precedents & Archive Matches

This case sits inside the same broader wave of 2019 Southern California naval UAP encounters as the USS Omaha Underwater Object case, which documents a separately notable, radar- and FLIR-tracked spherical object that appeared to descend into the ocean during the same general period in the same Warning Area W-291 operating box — a genuinely distinct incident (a different ship class, a different specific phenomenon, and no reported drone-swarm behavior) rather than the same event under a different name, but plainly part of the same operational moment and possibly the same underlying pattern of activity. Later that same year, in September 2019, a separate and also officially unresolved drone-swarm incursion over the Palo Verde Nuclear Generating Station in Arizona (cataloged at Palo Verde Nuclear Station Drone Swarm) was formally closed "unresolved" by the NRC and FBI, involving confirmed conventional UAS rather than any exotic craft — a close structural parallel to this case's own leading conventional finding. More recently, the 2023–2024 Langley AFB Drone Incursions repeated a similar pattern — sustained, unattributed drone activity over sensitive U.S. military airspace, met with an active but ultimately unsuccessful countermeasure and identification effort — suggesting this case was not an isolated anomaly but an early, unusually well-documented instance of a recurring category of incident that has continued for years since.

Navy documents released in June 2022 also show that these were not the first drone swarms around Navy ships off California that year. On March 30, 2019, the dock landing ship USS Harpers Ferry reported as many as eight unknown drones flying directly over the ship at about 500 feet; a draft public-affairs statement said they were thought to be "conducting collection operations." On April 24, 2019, the destroyer USS Zumwalt reported six drones crossing its flight deck in a "consistent pattern" that did not alter "course, speed, or altitude." The War Zone counted at least eight distinct encounters with groups of drones off California in 2019, some assessed as collection operations and others attributed to fishermen.

Material Analysis

Because no drone, fragment, or physical component was ever recovered, this case's "material evidence" consists entirely of documentary and imaging material: the deck logs themselves, the July 17 USS Paul Hamilton briefing slide and its single low-resolution FLIR frame, the five officially released 2022 videos, and the earlier leaked USS Russell night-vision footage. Treated as evidence in their own right, these materials are informative less for what they show of the drones themselves — consistently indistinct, low-resolution, and inconclusive at the level of physical structure — and more for what they reveal about the imaging chain that produced them. The bokeh analysis of the "pyramid" footage, confirmed independently by both Pentagon analysts and outside researcher Mick West, is a rare case where the visual "evidence" for an anomalous craft was directly and specifically traced to a mechanism internal to the recording equipment (aperture diffraction in a night-vision/SLR pairing) rather than to any property of the object being recorded — a genuinely different and more conclusive kind of debunking than the usual "distant light, ambiguous shape" verdict applied to most nocturnal light cases.

What the Documentary Record Does and Does Not Establish

The record does establish, with reasonable confidence: that real physical objects, tracked visually and in some cases on radar, were present on multiple nights (not a shared misperception, given the cruise ship's report and the quadcopters identified visually); that encounters lasted longer than a single typical consumer quadcopter can fly; and that the single most dramatic visual artifact associated with the case (the triangular shape) does not reflect the objects' true form. The record does not establish who built, owned, or piloted any of the drones; whether a single operator or multiple unrelated operators were responsible across the different nights and ships; or whether USS Russell's July 30 "technical military data" redactions reflect a genuinely different, more sensitive finding than the rest of the case, or simply a different FOIA reviewer applying a stricter standard to that particular batch of documents.

The Conventional Explanation Candidate: Hobbyist or Commercial High-Endurance Drones

The Department of Defense's own preferred framing, reflected in FOIA-released investigative documents, treats at least some of the encounters as consistent with ordinary hobbyist or small-commercial-operator activity — specifically, local recreational drone pilots flying consumer or prosumer multirotor platforms. A July 21 USS Paul Hamilton report assessed one group as "local fisherman operating personal quadcopters," USS Gabrielle Giffords found a fishing vessel among three small boats near its drones, and USS Russell's July 30 drones were accompanied by an unidentified pleasure craft. Such operators may have flown near the exercise out of curiosity, recklessness, or simple ignorance of the restricted airspace. By 2019, "prosumer" and hobbyist-adjacent drones with several-hour endurance and ranges well beyond a few miles were commercially available, meaningfully narrowing the technical gap this case file's own Background section describes between typical consumer drones and the sustained, 90-minute-to-three-hour encounters logged on the water.

A caveat on the Pentagon's preferred framing and Bray's testimony: both the DoD's hobbyist-drone framing and Scott Bray's later congressional "reasonably confident" bokeh explanation for the pyramid video are treated here as genuinely useful, falsifiable technical readings, not as automatically correct because they carry the Pentagon's name. A Navy investigating repeated, sustained incursions near its own warships during a live exercise has an institutional interest in a resolution that does not read as an admitted, multi-night defense-in-depth failure; this file gives Bray's specific explanation real weight because it converges with Mick West's independently derived optics analysis, reached before the testimony became public, not because a Deputy Director of Naval Intelligence said it from the dais.

Deliberate Foreign or Unattributed Intelligence-Collection Operation

A second, more concerning candidate treats the swarm as a deliberate intelligence-gathering or capability-testing operation by an unidentified — possibly foreign — actor, deliberately probing a live U.S. Navy exercise's sensor coverage, reaction time, and counter-drone response. This candidate draws support from the coordinated, multi-platform, multi-night persistence of the activity; from the specific July 30 detail of drones apparently "flashing... a searchlight or photographic device" onto USS Paul Hamilton's own bridge, a behavior more consistent with deliberate observation than idle curiosity; from a Navy briefing slide's assessment that the Hong Kong-flagged bulk carrier Bass Strait was "likely conducting surveillance on Navy vessels using drones" (The War Zone later noted that the dark dots in the photographs of the ship are more likely part of its structure than drones, and the operator, Pacific Basin, did not respond to questions); and from draft statements assessing the March 30 Harpers Ferry drones as "conducting collection operations." No operator, sponsoring organization, or nationality has ever been publicly confirmed for this candidate.

Misidentified Aircraft or Camera/Sensor Artifact

A third candidate holds that some contacts were not drones at all, or not what they appeared to be. The "pyramid"-shaped USS Russell footage was traced by both Pentagon analysts and Mick West to a night-vision/SLR bokeh artifact rather than a rigid structured craft, and Dunning reports that West matched one of the most intense Russell reports, on July 15, to incoming airliners. This candidate explains particular strands of the case well, but it does not account for the visually identified quadcopters, the radar tracks recorded by Bunker Hill and Ralph Johnson, or the object that fell into the water during the July 16 encounter.

Undisclosed Navy or Allied Test Asset

A fourth, weaker candidate, raised by Skeptoid's Brian Dunning rather than by any official source, is that the Navy's own MQ-8 Fire Scout unmanned helicopter accounts for some contacts. Navy investigators did seek to rule out their own operations: the Fleet Area Control and Surveillance Facility (FACSFAC) San Diego supplied schedules on which no Navy UAV activity was highlighted for July 14, and The War Zone reports that flight logs appeared to rule out mistaken identity with Navy assets. USS Gabrielle Giffords's own MQ-8B was flying when four drones orbited that ship in late July, but the ship treated the drones as separate from it.

Related Cases

Further Reading — Recommended Literature

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Essential Viewing

Sources

• Kehoe, Adam & Cecotti, Marc. "Multiple Destroyers Were Swarmed By Mysterious 'Drones' Off California Over Numerous Nights." The War Zone, Mar. 23, 2021. twz.com
• Hambling, David. "Mystery Drones Kept Buzzing U.S. Destroyers During Exercises Off California." Forbes, Mar. 24, 2021. forbes.com
• Kehoe, Adam & Cecotti, Marc. "Harassment Of Navy Destroyers By Mysterious Drone Swarms Off California Went On For Weeks." The War Zone, Dec. 17, 2021. twz.com
• Kehoe, Adam & Cecotti, Marc. "Navy Releases Timeline For Mysterious 2019 'UAS Swarm' Involving Warships Off California." The War Zone, Feb. 10, 2022. twz.com
• "Swarmed Navy Destroyer Had Its Bridge Illuminated By Mysterious Drones." The War Zone, Oct. 14, 2022. twz.com
• Kehoe, Adam & Cecotti, Marc. "Navy Destroyer Deployed DRAKE Counter-Drone Electronic Warfare System During 2019 Mystery Swarm Incident." The War Zone, Jan. 14, 2022. twz.com
• "Navy Releases Videos From Mysterious Drone Swarms Around Warships Off California." The War Zone, Jun. 15, 2022. twz.com
• "Navy Ships Swarmed By Drones, Not UFOs, Defense Officials Confirm." The War Zone (Adam Kehoe), May 21, 2022. twz.com
• "Drones That Swarmed U.S. Warships Are Still Unidentified, Navy Chief Says." NBC News (Dan De Luce), Apr. 5, 2021. nbcnews.com
• "Mystery Drones Hovered Over U.S. Navy Destroyers Off California Coast, Report Says." NBC News, Mar. 2021. nbcnews.com
• "Drones That Hovered Around US Warships in 2019 Remain Mystery, Top Navy Officer Says." Fox News. foxnews.com
• "Navy Still Has No Idea What Mysterious Drones That Stalked Its Ships for Days Were." Gizmodo, 2021. gizmodo.com
• Dunning, Brian. "The 2019 USS Kidd Incident." Skeptoid, Episode 777. skeptoid.com
• West, Mick. "USS Kidd (and other Ships) 'Drones' Encounter, 2019." Metabunk. metabunk.org
• West, Mick. "'Pyramid' UFOs in Night Vision Footage Are Bokeh." Metabunk. metabunk.org
• "The Black Vault Granted Important Appeal Relating to 2019 Unidentified 'Drone' Encounters." The Black Vault, Feb. 17, 2022. theblackvault.com
• House Permanent Select Committee on Intelligence, Subcommittee on Counterterrorism, Counterintelligence, and Counterproliferation. "Unidentified Aerial Phenomena," Open Hearing Transcript, May 17, 2022. congress.gov
• Baldor, Lolita C. "Congress' First Military UFO Hearing in 50 Years Deflates Speculation on Alien Spacecraft." Military.com/Associated Press, May 17, 2022. military.com
• "Pentagon Officials Testify at First Public UFO Hearing in More Than 50 Years." CBS News, May 17, 2022. cbsnews.com
• "USS Rafael Peralta (DDG-115)," Wikipedia — ship background, used lightly for orientation only. en.wikipedia.org
• The Black Vault. FOIA-released U.S. Pacific Fleet deck logs and briefing slides, 2021–2022 (cited throughout via The War Zone's published reproductions).
• Kehoe, Adam & Cecotti, Marc. "Drone Swarms That Harassed Navy Ships Demystified In New Documents." The War Zone, Jun. 10, 2022 (updated Jun. 16, 2022). twz.com
• NASA JPL Horizons, observer ephemerides for the Moon from 32.6° N, 118.6° W, July 15, 17 and 30, 2019 (quantities 4, 10). ssd.jpl.nasa.gov

Corrections (October 2026)

A fact-check against The War Zone's eight articles on the case (March 2021 to October 2022), the Navy documents they reproduce, NBC News (April 5, 2021), The Black Vault's appeal ruling, Skeptoid #777 and the May 2022 hearing, and for consistency with this site's corrected USS Omaha file, found that the earlier version of this page omitted the most important finding in the released record. Navy documents published in June 2022 attribute some of the sightings to "local fisherman operating personal quadcopters" and assess that the Hong Kong-flagged bulk carrier Bass Strait was "likely conducting surveillance on Navy vessels using drones"; the page had instead presented the bulk carrier only as an unproven "suspicion" and the fishermen as a passing "possibility." The page also moved the flight-deck hover and the "90 minutes" from USS Rafael Peralta to USS Kidd and presented the 90 minutes as a single drone's hover. It described USS Russell's 5-inch gun exercise as live fire "against the intruding contacts," the "ghostbuster" jammers as introduced "across the task group" (only Russell's logs mention them), and The Black Vault's appeal as the source of the unredacted Paul Hamilton slide (it reached requesters through separate requests). It also misplaced the Gimbal/GoFast encounters ("roughly 200 miles further north," "Carrier Air Wing 17"; they were filmed in 2015 off the U.S. East Coast).

Following this review, the rating was changed from Disputed 44 to Disputed 38 (October 28, 2026), because the higher rating had rested partly on claims corrected or removed above.

Other corrections, matching the USS Omaha file where the two overlap: the 113,000-square-nautical-mile and 600-nautical-mile figures for W-291 were removed as unverified; the "March 2019" formal Navy guidance update is not documented (Politico reported in April 2019 that guidelines were being drafted); Gilday spoke on April 5, 2021, not April 6; The War Zone's first article appeared on March 23, 2021; Dave Beaty first reported the Kidd incident in 2020, so the case was not unreported until 2021; the "Zumwalt footage" claim was replaced with the June 2022 documents' account of six drones on April 24, 2019 (and of eight over USS Harpers Ferry on March 30); the airliner identification for a July 15 Russell report is credited to West as reported by Skeptoid; FACSFAC did not "specifically deny" Navy drones, but its schedules showed none for July 14; a mislink of the bulk carrier Bass Strait to the Bass Strait location card (the Valentich case) was removed; and the computed Moon and weather values were replaced with JPL Horizons figures and the logged visibility. Added: Bunker Hill's radar tracks to 21,000 feet, the radio-frequency data captured on July 30, USS Gabrielle Giffords's encounter, and Russell's July 17 report.