The 2019 Navy Drone Swarms

Over several nights in July 2019, multiple U.S. Navy destroyers operating off Southern California logged repeated visits by unidentified aerial objects, documented in deck logs as UAS (unmanned aerial systems) events lasting hours. In 2021, researcher-obtained footage from the USS Omaha showed a spherical object tracked on infrared apparently descending into the sea without recovery. The events drove much of the "transmedium" vocabulary of the modern UAP debate. Subsequent investigation attributed at least part of the activity to drones, possibly launched from a nearby foreign-flagged vessel, without resolving every event.

Deck logs obtained through FOIA by researcher-journalists (The War Zone's reporting is the fullest) show that beginning July 14, 2019, ships including the USS Kidd, Rafael Peralta, and John Finn recorded multiple unidentified aircraft operating around them at night, sometimes matching ship speeds and maneuvering for 90 minutes or more, beyond the endurance of commercial quadcopters of the era. The ships activated intelligence teams and documented the events extensively.

Separately, footage recorded aboard the USS Omaha on July 15, 2019, released by filmmaker Jeremy Corbell in 2021, shows a dark sphere tracked on infrared before it appears to enter the water. Audio records crew reacting. No wreckage was recovered. The Pentagon confirmed the video was taken by Navy personnel and referred it to the UAP Task Force.

Crews of at least five destroyers. Corbell and George Knapp published the leaked imagery. The War Zone's Adam Kehoe and Marc Cecotti built the FOIA timeline. Congressional briefings followed.

Deck logs, intelligence summaries, the Omaha video and radar-scope footage, and additional leaked clips of triangular-appearing objects, which the Pentagon later suggested were ordinary aircraft distorted by night-vision optics (bokeh). The full sensor picture remains classified.

Navy and later AARO-era assessments characterized the July 2019 activity as likely drone operations, examining a Hong Kong-flagged bulk carrier in the area as a possible platform, while stopping short of a definitive attribution for all events. The Omaha sphere has no published individual resolution.

Skeptics regard the swarms as a drone-incursion and surveillance story rather than an anomaly story: the objects behaved like drones, a candidate launch vessel existed, and the era's quadcopter-endurance argument weakens if the operators were state-backed with better hardware. The triangle footage is explained as bokeh. The Omaha sphere, they note, is low-resolution infrared of a distant heat source whose "splash" is inferred. Proponents respond that no operator was ever identified, that hours-long loiter times and coordinated multi-ship harassment near U.S. waters remain unexplained in the public record, and that the transmedium description came from the crew, not the internet. The case now reads as either the best drone-incursion documentation or the best transmedium documentation, depending on the reader.