Sergeant Darren Groseclose, a 2nd Law Enforcement Battalion

Sergeant Darren Groseclose, a 2nd Law Enforcement Battalion military working dog-handler, praises his dog, Charlie, after his first water encounter, as they swim in the Area 5 pool at Marine Corps Base Camp Lejeune, N.C., Aug. 3, 2018. 2nd LEB practiced aggression training as part of specialized training to familiarize their dogs with water. The 2nd LEB military working dogs benefit from this particular type of training due to not being exposed to water tactics during initial training periods and become better accustomed to performing duties in atypical situations. (U.S. Marine Corps photo by Cpl. Austyn Saylor)