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 German U-boats operated from Palm Beach County. Morrison Field in West Palm Beach served as the take-off 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.