JS Kongo (DDG-173) is a Kongo-class guided missile destroyer in the Japan Maritime Self-Defense Force (JMSDF). Kongo is the third Japanese naval vessel named after Mount KongÅ. She was laid down by Mitsubishi Heavy Industries in Nagasaki, Nagasaki on 8 May 1990. Launching ceremony happened on 26 September 1991 and she was commissioned on 25 March 1993. She was the first ship outside of the United States to feature the Aegis combat system and its ballistic missile defense capability.