Japanese merchant and warships entering the Bay of Bengal according to the U.S. Joint Intelligence Committee. Daily summary dated 10 April 1942

An item reported that a large number of Japanese merchant ships was moving into the Bay of Bengal supported by warships which could be preparations for a landing in the near future.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 121 dated 10 April 1942