Issue Regulations: Korean War Combat Campaign Service (U.S. and Allied)
http://www.amervets.com/replacement/kcamp.htm#isr
Korean War War Combat Campaign Service (combat credit) is authorized to
in-country military servicepersonnel of all branches and nations. The officially
designated Korean War War combat campaigns are as follows:
UN Defensive: 27 June-15 September 1950
UN Offensive: 16 September-2 November 1950
CCF Intervention: 3 November 1950-24 January 1951
First UN Counteroffensive: 25 January-21 April 1951
CCF Spring Offensive: 22 April-8 July 1951
UN Summer-Fall Offensive: 9 July-27 November 1951
Second Korean Winter: 28 November 1951-30 April 1952
Summer-Fall 1952: 1 May-30 November 1952
Third Korean Winter: 1 December 1952-30 April 1953
Summer 1953: 1 May-27 July 1953