The crew of the Coast Guard Cutter Hollyhock, a 225-foot buoy tender homeported in Port Huron, Mich., patrols Lake Michigan near the city of Chicago during the 2012 NATO Summit, May 21, 2012. The Hollyhock's crew placed buoys around the city marking different security zones, conducted maritime awareness patrols and enforced security zones. (U.S. Coast Guard photo by Petty Officer 2nd Class George Degener)