UNCLASSIFIED 019 All-domain Anomaly Resolution Office US Department of Defense Case: "Southeast Asia Triangles" CLEARED Case Resolution I 17 March 2023 For Open Publication Oct 04, 2023 Department of Defense OFFICE OF PREPUBLICATION AND SECURITY REVIEW (U) Key Findings (U) AARO assesses that the subjects of the (U) Case Essentials "Southeast Asia Triangles" case from 2017 almost (U) Six triangular objects in a certainly are cone-shaped static fishing nets floating on the surface of the ocean. This formation were originally flagged as conclusion is based on a thorough review of the potentially anomalous and potentially evidence by AARO's Intelligence and Science and posing a risk to navigation Technology (S&T) Partners. (U) Location: Southeast Asia • (U) The image was originally flagged as (U) Date: 30 August 2017 containing potentially anomalous objects and posing a risk to navigation. Additional imagery (U) Altitude: N/A of the area from 2017 was discovered and (U) Shape: Six dark triangles collected. (U) Reporter: An Intelligence • (U) Both the Intelligence and S&T teams Community Member compared the size, shape, and location of the initial image to existing and subsequent images (U) Sensor: Satellite imagery in the same region, and compared it to libraries (U) Behavior: Noted as possible risk of known morphologies. to navigation (U) Case Status: Resolved; Objects (U) Intelligence Assessment are fishing nets on the ocean surface (U) AARO's Intelligence partners examined the image and compared it other imagery. Specifically, they located a clearer image in the vicinity of the objects in question. • (U) The images from 2017 display several triangles and were confirmed to be static, cone-shaped fishing nets. • (U) These triangular fishing nets were compared to the black triangles from the 2017 imagery and it was confirmed that are all are approximately the same size of about 11m x 7m. All-Domain Anomaly Resolution Office Chief of Staff, AARO Authority: FY24 NDAA, now codified at 44 U.S.C. 2107 Page determined to be Unclassified Date: 2/6/2025 Released in Full: X 1 Reviewed by Chief of Staff, AARO IAW FY24 NDAA, Section 1841(a)(1)(C) Case Number: 330UAP000019 UNCLASSIFIED Date: 2/6/2025