Airfield Invader To find the enemy at night, a few B-26 Invaders carried experimental infrared detection equipment. The operator viewed a 3-inch screen that crudely indicated high heat sources, such as train engines. Postwar infrared systems later proved to be very effective. SHARE IMAGE: Download Image: Full Size (0.76 MB) Tags: Medal of Honor, Korean War, Veterans, Air Force, Know Your Military Photo By: Air Force photo VIRIN: 100609-F-1234S-007E.JPG Photo Gallery