Advanced Aerospace Threat Identification Program (AATIP)

In 2007, the US Defense Intelligence Agency initiated the Advanced Aerospace Threat Identification Program (AATIP), a classified effort to assess reports of anomalous aerial vehicles encountered by military personnel. The program was created at the behest of Senator Harry Reid of Nevada, who secured $22 million in Congressional funding with support from fellow Senators Daniel Inouye and Ted Stevens.

Program Initiation

AATIP was launched by the US Defense Intelligence Agency in 2007.

It focused on evaluating reports of anomalous aerial vehicles observed by military personnel.

The initiative was driven by Senator Harry Reid, with funding support from Daniel Inouye and Ted Stevens.

Operations and Research

AATIP operated primarily through contracts with Bigelow Aerospace Advanced Space Studies.

The program produced dozens of technical research papers covering:
- Advanced propulsion concepts
- Biological effects reported by witnesses

Luis Elizondo, a career intelligence officer, assumed day-to-day management around 2010.

Funding and Continuation

Formal funding for AATIP ended in 2012.

Luis Elizondo stated that investigative work continued without a dedicated budget.

The program persisted despite the lack of official financial support.

Resignation and Public Disclosure

In October 2017, Luis Elizondo resigned from the Defense Department.

He cited frustration with institutional resistance to acknowledging the phenomena.

Two months later, the New York Times revealed AATIP's existence, accompanied by declassified military footage.

This coverage reignited global interest in unidentified aerial phenomena.

Elizondo's Account

In Imminent, Elizondo provides extensive insider details about AATIP's operations. The program operated from Pentagon office 3C503A initially without a dedicated budget, relying on borrowed resources. After DIA leadership changed in 2010, AATIP transitioned from DIA to the Office of the Secretary of Defense (OSD). Elizondo describes developing the Five Observables framework to systematically evaluate UAP capabilities, and later expanding it to six observables including biological effects. The program planned an ambitious field operation called OPLAN Interloper to actively detect and document UAP encounters, but this was ultimately rejected by the Joint Staff. A faction Elizondo calls the 'Collins Elite' — officials who viewed UAP through a religious lens as demonic — actively obstructed the program's work.

AATIP demonstrated that elements of the US defense establishment continued to take unidentified aerial phenomena seriously long after the closure of Project Blue Book. Its public exposure in 2017 triggered a fundamental shift in how governments and media approach the topic worldwide.