170618-N-TB410-0004 ARABIAN GULF (June 18, 2017) The Coastal Patrol Ship USS Whirlwind (PC 11) transits the Arabian Gulf during Exercise Spartan Kopis 17. The Task Force 55-led exercise between the U.S. Navy and Coast Guard is designed to increase tactical proficiency, broaden levels of cooperation, enhance mutual capability and support long-term security and stability in the region. (U.S. Navy photo by Mass Communication Specialist 1st Class Joshua Bryce Bruns/Released)