The Republic of Korea’s 53rd Demonstration Group, also known as the Black Eagles, fly above the flighline, Sept. 21, 2019, at Osan Air Base, ROK. The Black Eagles headlined Osan’s Air Power Day, which celebrated the US-ROK alliance while visitors exchange historical and traditions. ( Air Force photo by Staff Sgt. Greg Nash)

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Keywords: 2019, 7th, air, command, day, defense, department, fight, force, freedom, guardians, nations, power, rok, rokaf, solid, tonight, united, usfk