On November 15, 1950, the 91st SRS absorbed the personnel and resources of the 31st Strategic Reconnaissance Squadron in Japan. Using RB-29, RB-45, and RB-50 aircraft, it performed target and bomb-damage assessment photo and visual reconnaissance for FEAF Bomber Command, flew other special photographic missions, and conducted electronic "ferret" reconnaissance to determine frequency, location, and other characteristics of enemy ground radar.The squadron also performed shipping surveillance over the Sea of Japan near the Siberian coast and leaflet drops over North Korea. Beginning in late 1952, rotating aircrews of the Philippine-based 581st Air Resupply and Communications Wing augmented the 91st SRS in flying leaflet missions. Stations Johnson AB, Japan, November 15, 1950; Yokota AB, Japan, December 19, 1950-.