23 February 2015 Navy, Japan Maritime Self-Defense Force Train Together to Improve Regional Security The Ticonderoga-class guided-missile cruiser USS Antietam (CG 54) hosted an Air Defense Syndicate along with U.S. Air Force and Japan Maritime Self-Defense Force (JMSDF) personnel, Feb. 19.Held quarterly, these ongoing interactions between Antietam and the JMSDF are designed to help maintain...