The Korean Operation was established between the period 1950 to 1954.
The ribbon bears alternate narrow stripes of white and blue, the colours of the UN. Personnel were eligible to receive the medal after a period of 30 days service in the Mission.
The following countries provided troops to this Mission: Australia, Belgium, Canada, Columbia, Denmark, Ethiopia, France, Greece, Italy, Luxembourg, the Kingdom of the Netherlands, New Zealand, Norway, the Philippines, South Africa, Sweden, Thailand, Turkey, the United Kingdom of Great Britain and Northern Ireland and the United States of America.