The Order of Military Merit (Hangul: 무공훈장) is the primary military decoration awarded by the South Korean government. It is awarded to a person who rendered "outstanding military services by participating in an action in time of war or in quasi-state of war or by performing his/her duty equivalent to combat, such as responding to the attack of an enemy in a contact area."
https://en.wikipedia.org/wiki/Order_of_Military_Merit_(South_Korea)