Large number of enemy submarines in Eastern Mediteranean according to the U.S. Joint Intelligence Committee. Daily summary dated 4 January 1942

An item referred to the Alusna Cairo reporting the presence of maxium 30 u-boats in the Eastern Mediterranean.

Source

Map Room Papers (Roosevelt Administration), 1942 - 1945. U.S. Joint Intelligence Committee. Daily summary No. 25 dated 4 January 1942