Passage: In late 1941, Furutaka was assigned to Cruiser Division 6 Rear Admiral Aritomo Goto in the First Fleet with the cruisers Aoba, Kako and Kinugasa. At the time of the attack on Pearl Harbor, the division was engaged in support for the invasion of Guam.

Question: What was one of Cruiser Division 6's main causes that was supported during 1941?
the invasion of Guam