Soldiers assigned to U.S. Army North’s Task Force 51 and Airmen assigned to the 68th Airlift Squadron load the Sentinel, otherwise known as ARNORTH’s mobile command post, during the unit’s Level II Deployment Readiness Exercise (DRE), at Joint Base San Antonio Lackland Kelly Field Annex, San Antonio, Texas, Nov. 20, 2020. This exercise enhances the unit’s deployment readiness while maintaining USARNORTH’s forward capability in preparation for the 2021 hurricane season.