U.S. Air Force Senior Airman Dustin Downen, assigned to the 673d Logistics Readiness Squadron, accepts an equipment pallet after delivery during Polar Force 19-4 at Joint Base Elmendorf-Richardson, Alaska, March 26, 2019. Polar Force is a two-week exercise designed to test JBER’s mission readiness. Exercises like this strengthen and develop the skills service members require when facing adverse situations.