U.S. Air Force military working dog handlers assigned to the 409th Expeditionary Security Forces Squadron at Air Base 201, Niger, are charged with the security and defense of Airmen and Soldiers assigned to the base day and night. The Defenders rely on the unwavering bond they share with their MWDs as they search for threats to protect their base and comrades. (U.S. Air Force video by Tech. Sgt. Rose Gudex)