June 2026 Pentagon Transmedium UAP Disclosure

Pentagon Tranche 3 Release

On June 13, 2026, the U.S. Department of Defense released its third batch of declassified UAP files under the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE), following tranches released May 8 and May 22. Unlike the first two releases, Tranche 3 concentrated exclusively on unidentified submerged objects (USOs) and transmedium phenomena—a category of UAP that exhibits the extraordinary capability to operate seamlessly in both aerial and aquatic environments.

Transmedium Characteristics

Transmedium objects represent one of the most technically anomalous categories in the official UAP record. Military witnesses spanning multiple decades reported craft that dive below the ocean surface, emerge from water without cavitation or structural failure, and operate in both realms simultaneously. Conventional physics would predict catastrophic structural failure: an object transiting from air to water at high speed experiences extreme pressure differentials that no known engineering material can withstand. Yet numerous credible military observers—pilots, naval officers, sonar operators—documented precisely such behavior with no apparent explanation.

The released files contained multiple videos depicting these transmedium objects, along with corroborating sensor data, radar plots, and formal incident reports. One video showed a spherical object entering the ocean at high velocity without deceleration or thermal signature. Another depicted a cigar-shaped craft moving through both air and water columns within the same observed window.

Disclosure Context

The PURSUE initiative, launched through the Department of War's official UAP portal, represented an unprecedented commitment by the Trump administration to declassify and transparently release UAP materials. The three May-June tranches collectively contained approximately 160 documents, 60 videos, and additional photographic and audio evidence spanning decades of military encounters. Official reviewers noted that approximately 40 percent of reported phenomena lacked reasonable conventional explanation and remained unresolved after analysis.

The decision to devote an entire tranche to transmedium incidents underscored the Pentagon's assessment that underwater UAP activity constituted a distinct and significant category meriting dedicated scrutiny. The Sol Foundation and other independent researchers have long noted that oceanic UAP encounters receive less public attention than aerial sightings, despite decades of consistent naval observations.