Airmen with the 51st Aircraft Maintenance Squadron receive an A-10 Thunderbolt II April 21 at Osan Air Base Republic of Korea. The last two A-10C aircraft returned to the Korean Peninsula from Exercise COPE TIGER/Balikatan deployment. This occasion marks the first time that all A-10C model aircraft assigned to Osan have been on the Korean Peninsula at the same time. The A-10C's primary mission is to provide lethal, precision firepower in any potential close air support scenario.