Northern Edge A Marine Corps AH-1Z Viper flies over the Gulf of Alaska, May 3, 2021, during Northern Edge, an exercise that prepares joint forces to respond to crisis in the Indo-Pacific region. SHARE: Download: Full Size (0.89 MB) Tags: Marine Corps, Training, northern edge Credit: Marine Corps Lance Cpl. Brendan Mullin VIRIN: 210503-M-JX780-1330C.JPG Photo Gallery