On June 6, 1943, the Naval Combat Demolition Unit (NCDU) training school was established at Ft. Pierce, Florida. Training candidates came from rugged, physically capable Marine Raider and Navy Scout and Construction Battalion volunteers with previous swimming experience. Demolition work was emphasized without restriction. Grueling nighttime training conducted in the snake- and alligator-infested swamps of Florida produced a specimen of a man who was at home with mud, noise, exhaustion, water,...