190918-M-CY324-095 ADAK, Alaska (Sept. 18, 2019) U.S. Marine Corps Sgt. Zachary Butler, a bulk fuel specialist with Marine Wing Support Squadron 371, and a crew chief with Marine Heavy Helicopter Squadron 361, guide a Polaris MRAZR trailer loaded with a tactical air ground refueling system (TAGRS) out of a CH-53E Super Stallion during Arctic Expeditionary Capabilities Exercise (AECE) in Adak, Alaska on Sept. 18, 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 Lance Cpl. Tia D. Carr/Released)