Aerial reconnaissance

aviation incident

aerial photography by messenger pigeons equipped with cameras

military exploration and observation by means of aircraft or other airborne platforms

Intelligence gathered by means of imagery

1953 film by Brian Desmond Hurst

MI4, the British Military Intelligence Section 2, was a department of the British Directorate of Military Intelligence, part of the War Office. It was originally set up to handle topographical information including the preparation and issue of maps for the armed forces.

airport in India

1960s and 1970s CIA Iran-based aerial reconnaissance program