(U.S. Air Force Photograph.) black-and-white photos B-25s over Bougainville October 22, 2018by Lone_Sentry_Admin1 min read North American B-25 Mitchells from the 42nd Bombardment Group fly in formation over Bougainville from their base at Stirling Airfield, Solomon Islands in 1944. (U.S. Air Force Photograph.) (U.S. Air Force Photograph.)