Japanese naval enforcements sent to the Mandated Islands according to the U.S. Joint Intelligence Committee. Daily summary dated 10 April 1942

 An item reported that a number of Japanese small vessels probably motor torpedo boats were sent to the south to strenghth the defence of the Mandated Islands.

Source

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