Video by Sgt. Logan Ubaldo Lechuga 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/984829'></iframe> Download Embed Share National Defense Area buoy emplacement (B-Roll) Department of War Southern Border Sept. 25, 2025 | 1:34 U.S. Army Soldiers with the 168th Military Police Battalion, Tennessee Army National Guard, and the 144th Transportation Company, Florida Army National Guard, both assigned to Joint Task Force-Southern Border (JTF-SB), strategically place National Defense Area (NDA) buoys along the Rio Grande river near McAllen, Texas, Sept. 25, 2025. JTF-SB executes full-scale, agile, and all-domain operations in support of U.S. Customs and Border Protection to protect the territorial integrity of the United States and achieve 100% operational control of the southern border. (U.S. Army video by Sgt. Logan Ubaldo Lechuga)