Army paratroopers from the 4th Infantry Brigade Combat Team (Airborne), 25th Infantry Division, U.S. Army Alaska, make final gear adjustments prior to boarding Air Force aircraft for a joint forced-entry operation during Northern Edge 21 at Joint Base Elmendorf-Richardson, Alaska, May 11, 2021. Approximately 15,000 U.S. service members participate 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, practice tactics, techniques, and procedures, improve command, control, and communication relationships develop cooperative plans and programs. (U.S. Air Force photo by Alejandro Peña)