190920-M-YE163-1008 ADAK, Alaska (Sept. 20, 2019) U.S. Marines with Marine Heavy Helicopter Squadron 361, Marine Aircraft Group 16, 3rd Marine Aircraft Wing, land for an air assault during Arctic Expeditionary Capabilities Exercise (AECE) on Adak, Alaska, Sept. 20, 2019. Approximately 3,000 U.S. Navy and Marine Corps personnel are participating in AECE 2019, a joint training exercise that tests expeditionary logistical capabilities in the Arctic region and prepares joint forces to respond to crises across the Indo-Pacific. (U.S. Marine Corps photo by Staff Sgt. Rubin J. Tan/Released)