ILOPANGO, El Salvador – Army staff sergeants Mario Sarria and Wade Cothron, both Soldiers assigned to Joint Task Force-Bravo, perform pre-flight and post-flight checks on a CH-47 Chinook Nov. 14. JTF-Bravo has been providing vital relief supplies in order to help stabilize the region after a devastating flood Nov. 8. In three days the team of four helicopters and crew has distributed more than 172,700 pounds of supplies in a total of 42 flight hours (U.S. Air Force photo/Staff Sgt. Chad Thompson).