During World War II, Palm Beach County was a beehive of activity. Beachgoers witnessed the destruction left in the wake of U-boat attacks and then helped rescue survivors and retrieve the dead. One of the first Civil Air Patrol units to hunt U-boats operated from Palm Beach County. Morrison Field in West Palm Beach served as the takeoff point for Army Air Corps planes destined for battle lines throughout the world. Boca Raton Army Air Field was the headquarters for training airmen in top secret radar technology. The US Army, Navy, and Coast Guard used resort hotels for training sites and hospitals.