U.S. Sailors aboard the guided missile destroyer USS Donald Cook (DDG 75) prepare to remove chocks and chains from an SH-60B Seahawk helicopter assigned to Helicopter Anti-Submarine Squadron Light (HSL) 48 during flight operations in the Mediterranean Sea May 1, 2014. The Donald Cook was underway in the U.S. 6th Fleet area of responsibility as part of the European Phased Adaptive Approach to ballistic missile defense in Europe. (U.S. Navy photo by Mass Communication Specialist Seaman Edward Guttierrez III/Released)