The All-domain Anomaly Resolution Office (AARO) is an office within the United States Office of the Secretary of Defense that investigates unidentified flying objects (UFOs) and other phenomena in the air, sea, and/or space and/or on land: sometimes referred to as "unidentified aerial phenomena" or "unidentified anomalous phenomena" (UAP). Its first director was physicist Sean Kirkpatrick who reported to then deputy defense secretary Kathleen Hicks. Its current director is Jon T. Kosloski.