GOODFELLOW AIR FORCE BASE, Texas -- Lt. Gen. Mark Hertling speaks with Maj. James Arnold, 344th Military Intelligence Battalion, while visiting Forward Operating Base Sentinel, March 4, 2010. General Hertling, Deputy Commanding General for Initial Military Training, U.S. Army Training and Doctrine Command, visited Goodfellow to observe training. (U.S. Air Force photo/Airman 1st Class Clayton Lenhardt)
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