Petty Officer 3rd Class Corey Tull, from Coast Guard Station Calumet Harbor in Chicago, stands the watch with a mounted automatic weapon as he and the rest of his crew prepare to get underway for a security patrol, July 31, 2014. Tull is a well-respected boarding officer as well as a leader among his fellow crew members and was recently named the Coast Guard 9th District's Shipmate of the Week.