171128-N-DX365-0010 GUAM (Nov. 28, 2017) U.S. Navy MH-60S Sea Hawk helicopter, assigned to Helicopter Sea Combat Squadron (HSC) 25, participates in a Maritime Close Air Support Scenario with U.S. Marines in Guam. HSC-25 maintains a 24-hour search and rescue and medical evacuation alert posture, directly supporting the U.S. Coast Guard, Secor Guam and Joint Region Marianas. HSC-25 ensures maritime peace and security in the U.S. 7th Fleet area of operations. (U.S. Navy photo by Chief Mass Communication Specialist Joan E. Jennings/Released)