Cooling Off Soldiers attending basic combat training take an opportunity to cool off in the immersion cooler during the Army Reserve Drill Sergeant of the Year competition at Fort Jackson, S.C., Sept. 8, 2016. Army photo by Sgt. 1st Class Brian Hamilton SHARE: Download: Full Size (1.92 MB) Tags: reserves, soldiers, army Credit: Sgt. 1st Class Brian Hamilton VIRIN: 160908-A-OY832-007A.JPG Photo Gallery