U.S. Navy Naval Aircrewman (Helicopter) 1st Class Robert Crouch, left, and Naval Aircrewman (Helicopter) 2nd Class Justin Oliver, assigned to Helicopter Sea Combat Squadron (HSC) 26, stand watch aboard an MH-60S Seahawk helicopter during exercise Spartan Kopis Dec. 8, 2013, in the Persian Gulf. Spartan Kopis was a U.S. 5th Fleet training event that validated the effectiveness of using joint aviation assets in a maritime environment, as well as exercising joint force command and control structure and communications.