Major enemy submarines activities in the West Atlantic Ocean moving to new area according to the U.S. Joint Intelligence Committee. Daily summary dated 24 April 194

An item reported a slightly move of the major enemy submarines activities in the West Atlantic Ocean west of the longitude of the Azores northward tot an area around 300 miles of the coast of the USA between the Long Island and Cape Hatteras latitudes.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 135 dated 24 April 1942