United Nations Hat Pin
The United Nations Medal (UNM) is an international decoration presented by the United Nations to service members who have completed six months of duty in any joint international military operation authorized by the UN. Service members who have received other United Nations, campaign specific medals are authorized to wear only one medal. While the medal worn is to the service member's discretion, U.S. Armed Forces personnel are encouraged to wear the standard United Nations Medal. Decorations of multiple awards by the United Nations are represented by service stars on the United Nations medal that is being displayed.