A dog joins Airmen in NCO Leadership School Class 78-AL (I) for their class photo at the Air National Guard’s Professional Military Education Center on McGhee Tyson Air National Guard Base in East Tennessee in 1978. What is now Airman Leadership School started in 1970 for the Air Guard as a way to motivate, train, and retain younger grade Airmen. (U.S. Air National Guard file photo)

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Photo by: Master Sgt. Mike R. Smith |  VIRIN: 180223-Z-F3887-006.JPG