Eric Gray, a K-9 search handler, and his dogs Ripley

Eric Gray, a K-9 search handler, and his dogs Ripley and Riley, part of the California Task Force 2 Urban Search and Rescue team, Los Angeles County, Calif., wait to board a C-5 Galaxy aircraft during Patriot Hook, Joint Forces Training Base Los Alamitos, Calif., April 26, 2014. Patriot Hook is an annual exercise simulating a joint military and civilian force response to a natural disaster in a forward deployed location. (U.S. Air Force photo by Staff Sgt. Heather Cozad/Released)