I've just discovered that the U.S. Department of Defense has an office known as the All-domain Anomaly Resolution Office, this office "is leading the U.S. government's efforts to address Unidentified Anomalous Phenomena"
Here's how the DoD defines "Unidentified Anomalous Phenomena": https://www.aaro.mil/
Here's a Powerpoint presentation of what the All-domain Anomaly Resolution Office is: https://www.aaro.mil/Portals/136/PDFs/AARO Mission Brief_DOPSR Reviewed 07-2023.pdf?ver=Az1ksH5lqv4ORzVm5rI6Mw==
The All-domain Anomaly Resolution Office is currently "accepting reports from current or former U.S. Government employees, service members, or contractor personnel with direct knowledge of U.S. Government programs or activities related to UAP dating back to 1945," "these reports will be used to inform AARO's congressionally directed Historical Record Report": https://www.aaro.mil/Submit-A-Report/
There's even a UAP Records/Research page: https://www.aaro.mil/UAP-Records-Research/
On February 5, 2024, the U.S. Department of Homeland Security, in response to a September 28, 2023 letter from the Deputy Secretary of Defense, declassified and published all DHS documents associated with a program named KONA BLUE: https://www.aaro.mil/Portals/136/PDFs/UAP_RECORDS_RESEARCH/AARO_DHS_Kona_Blue.pdf?ver=BjOpTzFISPc0LWMw5uAzzw==
According to the All-domain Anomaly Resolution Office's report on the DHS KONA BLUE program, it was "a Department of Homeland Security (DHS) sensitive compartment established to protect the retrieval and exploitation of "non-human biologics." " However, KONA BLUE was "a Prospective Special Access Program (PSAP) that had been proposed to DHS leadership but was never approved or formally established. KONA BLUE never received any materials or funding, and there is no information beyond the proposal presentation marked with the KONA BLUE name.": https://www.aaro.mil/Portals/136/PDFs/UAP_RECORDS_RESEARCH/History_and_Origin_of_KONA_BLUE_FINAL_508.pdf?ver=VWt5t7KtzTZzZ3bZoEAGqA==
The All-domain Anomaly Resolution Office also links to this National Archives and Records Administration's site that's dedicated to "Records Related to Unidentified Anomalous Phenomena (UAPs) at the National Archives." NARA states that per sections 1841–1843 of the 2024 National Defense Authorization Act (Public Law 118-31), it required NARA to "establish an ''Unidentified Anomalous Phenomena Records Collection." This site has a pretty sizeable amount of declassified governmental documents relating to Unidentified Anomalous Phenomena, ranging from various military branches to NASA, and even documents from the Jimmy Carter library, the Gerald R. Ford library and the Bill Clinton library: https://www.archives.gov/research/topics/uaps
Here's how the DoD defines "Unidentified Anomalous Phenomena": https://www.aaro.mil/
The DoD considers Unidentified Anomalous Phenomena (UAP) as sources of anomalous detections in one or more domain (i.e., airborne, seaborne, spaceborne, and/or transmedium) that are not yet attributable to known actors and that demonstrate behaviors that are not readily understood by sensors or observers.
Here's a Powerpoint presentation of what the All-domain Anomaly Resolution Office is: https://www.aaro.mil/Portals/136/PDFs/AARO Mission Brief_DOPSR Reviewed 07-2023.pdf?ver=Az1ksH5lqv4ORzVm5rI6Mw==
The All-domain Anomaly Resolution Office is currently "accepting reports from current or former U.S. Government employees, service members, or contractor personnel with direct knowledge of U.S. Government programs or activities related to UAP dating back to 1945," "these reports will be used to inform AARO's congressionally directed Historical Record Report": https://www.aaro.mil/Submit-A-Report/
There's even a UAP Records/Research page: https://www.aaro.mil/UAP-Records-Research/
On February 5, 2024, the U.S. Department of Homeland Security, in response to a September 28, 2023 letter from the Deputy Secretary of Defense, declassified and published all DHS documents associated with a program named KONA BLUE: https://www.aaro.mil/Portals/136/PDFs/UAP_RECORDS_RESEARCH/AARO_DHS_Kona_Blue.pdf?ver=BjOpTzFISPc0LWMw5uAzzw==
According to the All-domain Anomaly Resolution Office's report on the DHS KONA BLUE program, it was "a Department of Homeland Security (DHS) sensitive compartment established to protect the retrieval and exploitation of "non-human biologics." " However, KONA BLUE was "a Prospective Special Access Program (PSAP) that had been proposed to DHS leadership but was never approved or formally established. KONA BLUE never received any materials or funding, and there is no information beyond the proposal presentation marked with the KONA BLUE name.": https://www.aaro.mil/Portals/136/PDFs/UAP_RECORDS_RESEARCH/History_and_Origin_of_KONA_BLUE_FINAL_508.pdf?ver=VWt5t7KtzTZzZ3bZoEAGqA==
The All-domain Anomaly Resolution Office also links to this National Archives and Records Administration's site that's dedicated to "Records Related to Unidentified Anomalous Phenomena (UAPs) at the National Archives." NARA states that per sections 1841–1843 of the 2024 National Defense Authorization Act (Public Law 118-31), it required NARA to "establish an ''Unidentified Anomalous Phenomena Records Collection." This site has a pretty sizeable amount of declassified governmental documents relating to Unidentified Anomalous Phenomena, ranging from various military branches to NASA, and even documents from the Jimmy Carter library, the Gerald R. Ford library and the Bill Clinton library: https://www.archives.gov/research/topics/uaps