THE FOUR TOPS U.S. Navy sailors apply a bucket patch to a simulated ruptured bulkhead during a damage control exercise at the Yokosuka Center for Naval Engineering Firefighting and Damage Control Learning Site in Yokosuka, Japan, March 8, 2011. The site offers sailors hands-on training in shoring, firefighting, patching, and chemical, biological and radiological defense. SHARE IMAGE: Download Image: Full Size (0.08 MB) Photo By: VIRIN: 167738-A-JNU08-730.jpg Photo Gallery