May 25, 1943

The Fifty-fifth General Hospital, “the Underground Hospital,” at Robinson Maneuver Training Center in Pulaski County was activated, during the United States’ involvement in World War II. Documents relating to the hospital were declassified on September 27, 1958; these stated that the Underground Hospital was the brainchild of then commanding officer Lieutenant Colonel Charles Chute Gill of the United States Army Medical Corps. Prior to other modern medical ventures, such as the Mobile Army Surgical Hospital (MASH) units implemented during the Korean War, the Underground Hospital experiment sought to simulate battle conditions and assess the potential for providing protected medical care at or near the frontlines.