150303-N-NM917-440 PACIFIC OCEAN Gunner's Mate 1st Class John Linke, assigned to the U.S. 7th Fleet flagship USS Blue Ridge, assists with the training on the proper use of the .50-caliber machine gun on the main deck during a live-fire exercise. Blue Ridge is currently conducting sea trials in preparation for resuming patrols in the 7th Fleet area of operations.