Service Stars are authorized to be worn on the Korean Service Medal ribbon to denote participation one or more of 13 officially recognised campaigns of the Korean War. Some campaigns apply to all branches of the U.S. military, while others are branch specific. The Korean Service Medal is usually awarded together with the United Nations Service Medal for Korea. The ribbon of the Korean Service Medal is visible on the Class A uniforms of Lt. Colonel Henry Blake, Colonel Sherman T. Potter and Margaret "Hot Lips" Houlihan although no service stars are seen.