GULF OF ALASKA (May 3, 2021) A U.S. Marine Corps AH-1Z Viper assigned to Marine Medium Tiltrotor Squadron 164 (Reinforced), 15th Marine Expeditionary Unit flies over the Gulf of Alaska in support of Northern Edge 2021. U.S. service members are participating in a joint training exercise hosted by U.S. Pacific Air Forces, May 3-14, 2021, on and above the Joint Pacific Alaska Range Complex, the Gulf of Alaska, and temporary maritime activities area. NE21 is one in a series of U.S. Indo-Pacific Command exercises designed to sharpen the joint forces� skills, to practice tactics, techniques, and procedures, to improve command, control and communication relationships and to develop cooperative plans and programs. (U.S. Marine Corps photo by Lance Cpl. Brendan Mullin)