J. C. S. Files

No. 609
Memorandum by the Representatives of the British Chiefs of Staff 1
top secret
C. C. S. 884

Information for the Russians Concerning the Japanese War

1.
The Head of the British Military Mission in Moscow, General Gammell, has asked the British Chiefs of Staff to inform him, in the event of Russia declaring war on Japan, what information he should pass to the Russians on Japanese dispositions and estimated intentions, and on British dispositions and operational plans.
2.
The British Chiefs of Staff feel that it is desirable for the policy adopted by them in imparting information to the Russians on these subjects to be coordinated with the policy of the United States Chiefs of Staff.
3.
The British Chiefs of Staff suggest that General Gammell and General Deane should be empowered to hand over information on Japanese dispositions and intentions, and also on Allied dispositions only if it is asked for, and then only on a basis of reciprocity. The British Chiefs of Staff as agents of the Combined Chiefs of Staff would provide General Gammell with the necessary information on Southeast Asia Command, and they assume that the United States Chiefs of Staff would provide General Deane with information about the Pacific, Southwest Pacific, and China Theatres. Coordination between General Gammell and General Deane would however be necessary in order to ensure that information is passed on American forces in a theatre under the operational control of the British Chiefs of Staff, and vice versa.
4.
So far as Allied intentions in all theatres are concerned, the British Chiefs of Staff consider that information should be passed to the Russians only on the authority of the Combined Chiefs of Staff on each occasion.
5.
We should be glad to have the views of the United States Chiefs of Staff on this matter.
  1. Considered by the Combined Chiefs of Staff at their 196th Meeting, July 19. See vol. ii, pp. 113115.