HIS343H1 Chapter Notes - Chapter 6: North Atlantic Air Ferry Route In World War Ii, U-Boat, Room 40
Document Summary
World war ii: intelligence failures & successes (part. Rohwer, j rgen, the operational use of ultra" in the battle of the atlantic. in intelligence and international. Relations, 1900-1945 edited by christopher m. andrew and jeremy noakes, 275-292. Radio intelligence of critical importance to both sides. Secure flow of shipping, transporting civilian and military supplies from all over the world. Sever lines of communication by using aircraft, surface ships, u-boats to attack ships in convoys. British believed that the most effective defense against u-boats was convoying of transport ships. Only needed escort when arriving in u-boats" operational zone. Convoys could disperse once they entered safe zones. Extent of anti-submarine escort had to be widened to west, finally covered entire north atlantic route. London admiralty would recommend route about 8 days before departure of ship. Coordination - route would be agreed upon, routing signals sent. Use of cable and radio - to get to ships already at sea.
