Video by Sgt. Nathan Hislop Player Embed Code: <iframe width='500' height='300' scrolling='no' frameborder='0' style='border: none; overflow: hidden; width: 500px; height: 300px;' allowtransparency='true' src='https://www.dvidshub.net/video/embed/1004312'></iframe> Download Embed Share U.S. Army soldiers with JTF-SB conduct helicopter pre-flight check Operation Ardent Vanguard April 15, 2026 | 2:37 U.S. Army Soldiers with 1st Air Calvary Brigade, assigned to Joint Task Force-Southern Border (JTF-SB), conduct pre-flight checks near El Cajon Calif., April 15, 2026. JTF-SB provides a variety of support to U.S. Customs and Border Protection (CBP), including aviation. U.S. Northern Command is working side-by-side with the Department of Homeland Security and CBP within narrowly defined authorities to provide unique military capabilities to protect the territorial integrity of the U.S. southern border. (Dept. of War video by U.S. Marine Corps Sgt. Nathan Hislop)