Army paratroopers assigned to the 4th Infantry Brigade Combat Team (Airborne), 25th Infantry Division, U.S. Army Alaska, jump from a CH-47 Chinook helicopter during airborne training at Joint Base Elmendorf-Richardson, Alaska, Nov. 1, 2018. The Soldiers of 4/25 belong to the only American airborne brigade in the Pacific and are trained to execute airborne maneuvers in extreme cold weather and high altitude environments in support of combat, partnership and disaster relief operations. Army aviators from B Company, 1st Battalion, 52nd Aviation Regiment out of Fort Wainwright, operated CH-47 Chinook helicopters to support the airborne training. (U.S. Air Force photo by Alejandro Peña). Original public domain image from Flickr