Sailors heave line as the Arleigh Burke-class guided-missile destroyer Donald Cook (DDG 75) returns to Rota, Spain, for a scheduled maintenance period on Aug. 16, 2017. Mass Communication Specialist 1st Class Theron J. Godbold/Navy

Sailors heave line as the Arleigh Burke-class guided-missile destroyer Donald Cook (DDG 75) returns to Rota, Spain, for a scheduled maintenance period on Aug. 16, 2017. Mass Communication Specialist 1st Class Theron J. Godbold/Navy