Exercise Ulchi Freedom Guardian
American and Korean servicemembers conduct operations at the Korea Air Operations Center at Osan Air Base, South Korea, during an exercise earlier this year. More than 27,000 American and 500,000 South Korean servicemembers currently are participating in Exercise Ulchi Freedom Guardian which runs from Aug. 16 to Aug. 26, 2010. This year marks the 34th anniversary of the joint/combined exercise. (U.S. Air Force photo illustration)