Border Exercise
Marines assigned to Joint Task Force Southern Border stand in a line to board a UH-60 Black Hawk during a simulated casualty evacuation exercise near San Ysidro, Calif., May 20, 2026. U.S. Northern Command is working side-by-side with the Department of Homeland Security and U.S. Customs and Border Protection within narrowly defined authorities to provide unique military capabilities to protect the territorial integrity of the U.S. southern border.