Even in the middle of the ocean, Sailors need to maintain their ability to accurately fire various weapons.
Here a Sailor qualifies to shoot an M-16 rifle. At sea, the Bridge crew tries to maintain the ship on a course to minimize wind and rocking motions, and the Gunners Mates and Fire Controlmen set up and run a makeshift gun range in order to maintain the proficiency of over 250 crew members.
Seth Rusackas Photography 
I have to say, this is probably my favorite from a sheer photo-critic angle. The depth of field is good, as is the weight-balance of the composition, and it has a lot of good positive/negative space interplay. I love how the little bursts of color jump right at you.