4th Annual Osan Cup
U.S. Air Force Master Sgt. Martin Waack, 51st Maintenance Squadron maintenance flight chief, hits a golf ball during the 4th Annual Osan Cup at Osan Air Base, Republic of Korea, Sept. 29, 2017. The event was held for two days consisting of various activities such as softball, golf and poker. Units throughout the base competed against each other to earn points for a chance at winning the Osan Cup. (U.S. Air Force photo by Staff Sgt. Franklin R. Ramos/Released)

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Photo by: Staff Sgt. Franklin R. Ramos |  VIRIN: 170929-F-FV476-053.JPG