B-roll of U.S. Airmen assigned to the 156th Contingency Response Group, Puerto Rico Air National Guard during exercise Sentry South-Southern Strike at Camp Shelby, Mississippi, Feb. 3, 2025. Exercise Sentry South-Southern Strike is a joint military partnership that strengthens contingency response operations, agile combat employment, aeromedical evacuation, joint maritime training, specialized fueling operations and intra-theater airlift and airdrop. (U.S. Air National Guard video by Senior Airman Gisselle Toro Caraballo)