AATIP (Advanced Aerospace Threat Identification Program) was a U.S. Department of Defense program that investigated military encounters with unidentified anomalous phenomena, focused on the national-security implications of UAP operating in or near U.S. airspace and over sensitive military installations. It is the named successor to AAWSAP (Advanced Aerospace Weapon System Application Program) and the institutional predecessor to the lineage of programs eventually consolidated under aaro.
lue-elizondo led AATIP before resigning from the Department of Defense in 2017; the program is publicly described as defunct. In his November 13 2024 house-oversight-committee testimony (src-elizondo-house-hearing-2024-11), Elizondo characterized AATIP’s mandate as examining UAP threats to sensitive military installations and U.S. nuclear assets — connecting AATIP thematically to nuclear-uap-correlation.