National Defense Service Medal
The National Defense Service Medal was established in 1953.
It is awarded for honorable active service for any period between the following periods:
27 June 1950 and 27 July 1954 (Korea)
1 January 1961 and 14 August 1974 (Vietnam)
2 August 1990 and 30 November 1995 (Persian Gulf)
11 September 2001 to present (Global War on Terror)