Coast Guard Petty Officer 3rd Class Michael Walker, a boatswain's mate with Maritime Safety and Security Team 91103, scans the horizon while on patrol at U.S. Naval Station Guantanamo Bay, Dec. 9, 2009. MSST 91103 is deployed here to perform maritime anti-terrorism and force protection duties for Joint Task Force Guantanamo.
Sgt. Emily Greene
Taken on 9 December 2009
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