U.S. Navy Gunner's Mate 3rd Class Matthew Montalbano loads a .50-caliber machine gun during a small-craft action team (SCAT) exercise aboard the amphibious dock landing ship USS Pearl Harbor (LSD 52) while under way in the Arabian Sea Sept. 20, 2010.
SCAT drills are designed to train crewmembers how to react in the event of a small-boat attack on the ship. (DoD photo by Mass Communications Specialist 2nd Class Michael Russell, U.S. Navy). Original public domain image from Flickr