Two U.S. Navy MH-53E Sea Dragon helicopters assigned to Helicopter Mine Countermeasures Squadron 15 participate in a cast and recovery exercise with explosive ordnance disposal technicians with Commander, Task Group 56 in the Persian Gulf May 22, 2014. CTG 56.1 conducted mine countermeasures, explosive ordnance disposal, salvage diving and force protection operations in the U.S. 5th Fleet area of responsibility.