Enemy submarines increasing activities between Hawaii and Midway according to the U.S. Joint Intelligence Committee. Daily summary dated 8 March 1942

An item reported that that the enemy seemed to increase her submarine activities between Honolulu, Hawaii and Midway with now 6 submarines.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 88 dated 8 March 1942.