The U.S. Department of War published the fourth release in its PURSUE UAP archive on July 10, expanding the government collection by 40 files. People reported that the batch contains 14 documents, 19 videos, four audio files and three images drawn from records dated between 1948 and 2025.
The release mixes historical investigations with recent military sensor material. It includes a Project Sign progress report, a 1949 analysis of flying-object incidents, a Los Alamos conference transcript, NASA imagery from the 1996 STS-80 mission and newer infrared recordings submitted through military channels.
One historical document revisits the 1948 death of Kentucky Air National Guard pilot Thomas Mantell during an attempted interception. The report recorded his description of a large metallic-looking object but also considered oxygen deprivation before the crash, illustrating why the archive preserves competing facts without resolving the event through a single quotation.
The video files are similarly uneven in context. Some show small dark or bright targets against featureless sensor backgrounds, while public metadata may omit range, altitude, platform identity or a complete tracking history. Unresolved status therefore means the released record did not establish an identification; it does not by itself establish exotic performance.
The fourth release is significant because it gives researchers stable government files that can be compared with later reporting and technical analysis. Its value lies in provenance and access: each document or clip can be examined on its own terms, while claims circulating in edited social-media versions can be checked against the official copy.