Pentagon rules out UFO link to foreign adversaries in new reportBy Janderson Luiz
3 min read
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The United States Department of Defense has published a new annual report on Unidentified Anomalous Phenomena (UAP), ruling out the possibility that these sightings are attributable to foreign adversaries. The release of the document comes one day after a congressional hearing with witnesses on the topic.
The report, prepared by the All-domain Anomaly Resolution Office (AARO), found no indications or confirmations that activities involving UAPs could be the result of operations by rival nations. This conclusion is relevant as it demystifies one of the main national security concerns associated with the phenomena, directing the focus towards a more in-depth investigation based on scientific data. The research covered incidents recorded between May 1, 2023 and June 1, 2024, as well as previous undocumented cases.
Increase in cases under analysis and the Pentagon’s commitment
By June 1, 2024, AARO had accumulated more than 1,600 cases under review, demonstrating the scale of the phenomenon and the need for a rigorous approach. The Pentagon emphasizes the seriousness with which it treats all reports of incursions into its designated spaces — land, air, sea and space. The safety of service personnel, military bases and installations, as well as protecting the security of U.S. operations, are considered of paramount importance in investigations.
The military body reinforced its ongoing commitment to analyzing and understanding the potential threats posed by UAPs. This is a collaborative initiative involving several government departments and agencies, highlighting the complexity and scope of the challenge of understanding events. The goal is to use a robust scientific framework and data-driven methodology to document, analyze and, when possible, resolve reports.
Limitations in the investigation of unidentified aerial phenomena
Despite the large number of cases under review, AARO’s ability to resolve incidents remains limited. The report highlights that the main constraint is the absence of timely and actionable sensor data, essential for a definitive conclusion. This lack of precise information makes it difficult to identify the exact nature of phenomena and prevents clear attributions.
AARO continues to coordinate efforts with the Intelligence Community (IC) to determine whether observed activities may, in fact, have any connection to the actions of foreign adversaries. However, the lack of concrete data to support this hypothesis reinforces the need to improve information collection capabilities.
Technological advances and strategic collaborations for detection
To overcome challenges in data collection, AARO began using a prototype sensor system known as GREMLIN. This system was specifically designed to detect, track and characterize UAPs. During a test event held in March 2024, GREMLIN successfully demonstrated functionality and collected data.
Next steps for the GREMLIN system include a 90-day data collection phase at a national security location for more in-depth and ongoing monitoring. In addition to developing its own technologies, AARO seeks to expand its strategic partnerships.
- Optimization of sensor requirements and information sharing processes.
- Expanded engagement with foreign partners to exchange information and best practices in resolving UAP cases.
- Developing partnerships with the US government, academia, and business communities.
- Enhancing sensor technology capabilities, analytical tool suites, and UAP-related sciences in the space, air, and maritime domains.
This multifaceted approach aims to improve understanding and resolution of anomalous phenomena while maintaining transparency with the public and Congress while enhancing national security.







