Video by Sgt. Crist Joseph Player Embed Code: Download Embed Share 101st Division Sustainment Brigade conducts elevator drill training in support of southern border mission Department of War Southern Border Aug. 4, 2025 | 1:28 U.S. Soldiers with 101st Division Sustainment Brigade, assigned to Joint Task Force-Southern Border (JTF-SB), prepare to hook an ISU-90 container to a CH-47 Chinook as part of an elevator drill exercise at Terrell County Airport, Texas, Aug. 4, 2025. The elevator drill is being conducted to prepare for aerial delivery missions to austere environments along the southern border. 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. Crist Joseph)