Japanese still searching for Allied naval force in the northwestern Pacific according to the U.S. Joint Intelligence Committee. Daily summary dated 21 April 1942

An item reported that Japanese aircraft, surface vessels and submarines were still looking for an imagnairy Allied naval force in the northwestern Pacific.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 132 dated 21 April 1942