Airman 1st Class Brandon Hilliard, installation entry controller with the 319th Security Forces Squadron, left, and Senior Airman Dakota Smith, base defense operations center operator with the 319 SFS, interact with a driver passing through the main gate of Grand Forks Air Force Base, N.D., March 7, 2018. Installation entry controllers spend an average of 12 hours on each shift, staying vigilant and ensuring no one enters the base without authorization. (U.S. Air Force Photo by Airman 1st Class Elora J. Martinez)

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Photo by: Airman 1st Class Elora J. Martin |  VIRIN: 181107-F-YG475-104.JPG