In the February 2023 edition of the White Paper Series, the Intelligence & Analysis Division examines unidentified aerial phenomena (UAP). Though mysterious airborne objections have been observed and recorded for thousands of years, recent technical, logistical, and scientific developments have shed new light on UAP events and their potential sources. Of late, the U.S. government has undertaken a more detailed examination of UAP. New avenues of reporting, task forces, and independent studies aim to systematically record, organize, and identify these events and their sources. Sometime such identification is done retroactively, showing us the many forms a UAP may take. UAP could have a wide array of sources, from benign weather events to foreign adversary surveillance. For this reason, the study of UAP is vital for both national security and scientific advancement.