Activities of enemy submarines in the Caribbean to be expected according to the U.S. Joint Intelligence Committee. Daily summary dated 31 March 1942

An item reported that the estimated geographical locations of enemy submarines would suggest that on short notice attacks in the Caribbean were to be expected.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 111 dated 31 March 1942