To: Tokyo July 14, 1941.
To be kept secret within the Department.
Re my #253[a].
Subsequent information from the military officials to the Attaché is as follows:
1. The recent general mobilization order expressed the irrevocable resolution of Japan to put an end to Anglo-American assistance in thwarting her natural expansion and her indomitable intention to carry this out, if possible, with the backing of the Axis but, if necessary, alone. Formalities, such as dining the expeditionary force and saying farewell to them, have been dispensed with. That because we did not wish to arouse greatly the feelings of the Japanese populace and because we wished to face this new war with a calm and cool attitude.
2. The immediate object of our occupation of French Indo-Chin will be to achieve our purposes there. Secondly, its purpose is when the international situation is suitable, to launch therefrom a rapid attack. This venture we will carry out in spite of any difficulties which may arise. We will endeavor to the last to occupy French Indo-China peacefully but, if resistance is offered, we will crush it by force, occupy the country and set up martial law. After the occupation of French Indo-China, next on our schedule is the sending of an ultimatum to the Netherlands Indies. In the seizing of Singapore the Navy will play the principal part. As for the Army, in seizing Singapore it will need only one division and in seizing the Netherlands Indies, only two. In the main, through the activities of our air arm (in your city, the Spratley Islands, Parao, Thaiese Singora, Portuguese Timor and French Indo-China) and our submarine fleet (in the South Seas mandate islands, Hainan Island and French Indo-China) we will once and for all crush Anglo-American military power and their ability to assist, in any schemes against us.
3. The troops soon to occupy French Indo-China will be reorganized as the 25th Army Corps (one Army Corps consists of four divisions) and also the 30th Army Corps, consisting of the South China forces, which will be assigned to special duty with airplanes, tanks,
and howitzers. General IIDA (the IIDA Army mentioned in preceding telegrams has been changed to the Nishimura detachment) will be placed in command and general military headquarters will be set up in Saigon. All preparations have been made. The ship fees have been paid and the expedition will soon proceed from here.
Army 19731 Trans. 7-19-41 (5)
[a] Not available.
(EXHIBITS OF JOINT COMMITTEE , EXHIBIT NO. 1 INTERCEPTED DIPLOMATIC MESSAGES SENT BY THE JAPANESE GOVERNMENT BETWEEN JULY l AND DECEMBER 8, 1941)