The Armed Forces Special Weapons Project (AFSWP) was the post-WWII U.S. military organization established in 1947 to take over the nuclear-weapons stockpile and effects-research mission from the Manhattan Project. AFSWP is the institutional bridge between the Manhattan Project and later organizations (Defense Atomic Support Agency, Defense Nuclear Agency, Defense Threat Reduction Agency).
Per the May 22, 2026 pursue Release 02 (src-pentagon-second-batch-ufo-release-2026-05), AFSWP and the U.S. Air Force jointly documented 200+ UAP sightings — green orbs, discs, and fireballs — at Sandia, NM between 1948 and 1950, one of the densest documented early UAP–nuclear-weapons clusters on record.