WWII Destroyer Escort Anti-Submarine Warfare Film
This film is about the story of the destroyer escorts and their services in the U.S. Navy it shows the construction and launch of the USS Frament (DE-677) in June 28 1943 and USS Brennan (DE-13) in August 22 1942. The Destroyer Escort was the United States Navy mid-20th century classification for a 20-knot (23 mph) warship designed with endurance to escort mid-ocean convoys of merchant marine ships. Kaibōkan were designed for a similar role in the Imperial Japanese Navy. The Royal Navy and Commonwealth forces identified such warships as frigates, and that classification was widely accepted when the United States redesignated destroyer escorts as frigates in 1975. Destroyer escorts, frigates and kaibōkan were mass-produced for World War II as a less expensive anti-submarine warfare alternative to fleet destroyers.