The following are a selection of letters written by Sergeant John (Fingers) Heart to his wife, family and friends. John served in the 1st Infantry in Vietnam and was a part of the special 'Tunnel Rat' squad set up by Captain Herbert Thornton, also of the 1st Infantry. Originally called "Tunnel Runners" by the 25th Infantry Division, and "Ferrets" by the Australian Army, the term "Tunnel Rat" soon became their official accepted name. The tunnel rats were among the bravest in Vietnam, doing a job that not many others could, or would care to do.
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