September 6, 1941 The 6th Imperial Conference (Decision: Outline of Imperial national policy and preparation for war against the US, Britain, and the Netherlands near the end of October.) “Guidelines for the Implementation of Imperial National Policy” (Page 1) (Offered by the Diplomatic Museum at the Ministry of Foreign Affairs) From 10:00 to 12:00 on Saturday, September 6, 1941, The 6th Imperial Conference is held. It is decided that preparations for war at the end of October are necessary as war with Britain and the US is inevitable. It is decided at this conference that Japan will continue negotiations with the US while it prepares for war, and then launch a quick attack when its request are not agreed to. Document 1: B02032959500 (To: Kouda Manager) The Decision Document of Important National Policy on the Outbreak of the War; Vol. 12 to Vol. 20; “Declaration of war on the U.S. and Britain”; The minutes of the Privy Council Conference, the Decision Document on Important National Policy Directly Related to the Outbreak of the War. Vol. 1 to Vol. 4 (Images 15 to 18) “The 18th Imperial Conference on September 6, 1941, Guidelines for the Implementation of Imperial National Policy” On September 6th, 1941, the 6th Imperial Conference was convened and the Imperial Policy Execution Outline was determined. Document 1 is the complete text of this outline. The following precepts were established: (1)In order to carry out a policy of “self-existence and self-preservation”, Japan resolved to make war with Great Britain and the United States, with the end of October as the goal for finishing war preparations (2) Continuing negotiations to prepare for hostilities against the United States (3) In the event of Japan's demands not being met by early October, the immediate commencement of war against the United States (along with Great Britain and the Netherlands).