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Gen. Mike Holmes, commander of Air Combat Command, speaks to judges during ACC’s 2020 Spark Tank competition at Joint Base Langley-Eustis, Va., Oct. 16, 2019. Six teams of Airmen from across ACC presented their ideas. The winning teams will move on to the finals in Washington, D.C., to compete at the Air Force level against finalists from other commands. (U.S. Air Force photo by Tech. Sgt. Nick Wilson)
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