ENGINE CHAT Marine Corps Sgt. Maj. Bryan B. Battaglia, right, senior enlisted advisor to the chairman of the Joint Chiefs of Staff, talks to Navy Chief Petty Officer Bolden in the engine room about the capabilities of the USS Zephyr on Naval Station Mayport, Fla., April 14, 2014. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 734663-L-TNG24-842.jpg Photo Gallery