The Japanese Hong Kong Blockading force according to the U.S. Joint Intelligence Committee. Daily summary dated 16 December 1941

An item referred to Spenavo, London reported the estimated strength of the Japanese Hong Kong Blockading force on 1 heavy cruiser and 8 destroyers.

Source

Map Room Papers (Roosevelt Administration) mr0422a. U.S. Joint Intelligence Committee. Daily summary No. 6 Dated 16 December 1941.