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U.S. Airmen assigned to the 354th Range Squadron and representatives from the Royal Australian Navy pose in front of the Joint Pacific Alaska Range Complex’s first advanced emitter near Eielson Air Force Base, Alaska, March 1, 2022. The state-of-the-art emitter, nicknamed “YETI,” replicates signals emitted by enemy surface-to-air-missile radars, training pilots and aircrews to detect and destroy them.