The USS Chosin arrives in Portland, Ore., while Coast Guard boatcrews work with local law enforcement to enforce a security zone for the visiting vessels on the Willamette River, June 4, 2015. Coast Guard crews from Portland, Astoria, Seattle and Honolulu worked with Coast Guard Auxiliary members to enforce a security zone around the navy vessels, ensuring the safety of the Navy ships and crews. (U.S. Coast Guard photo by Chief Petty Officer David Mosley.)