U.S. Coast Guardsman perform a simulated "man overboard" operation off the coast of Valdez, AK, on May 10, 2023 in support of ARCTIC EDGE. ARCTIC EDGE 2023 (AE23) is a U.S. Northern Command-led homeland defense exercise demonstrating the U.S. military's capabilities in extreme cold weather, joint force readiness, and U.S. military commitment to mutual stratgeic security interests in the Arctic region.