Prime Minister Churchill to the Secretary of War
Berlin, 18.7.45
Top secret
and personal
Mr. Secretary Stimson: I enclose a photostat record of the Hyde Park Agreement on T.A., for which you asked the Chancellor of the Exchequer.
This photograph was taken by a special photographic section of the Air Ministry, and flown out here in the charge of a trusted officer.
W[INSTON] S C[HURCHILL]
[Enclosure]
Top secret
Tube Alloys
Aide-Mémoire of Conversation Between the President and the Prime Minister at Hyde Park, September 18, 1944
-
The suggestion that the world should be informed regarding Tube Alloys, with a view to an international agreement regarding its control and use, is not accepted. The matter should continue to be regarded as of the utmost secrecy; but when a “bomb” is finally available, it might perhaps, after mature consideration, be used against the Japanese, who should be warned that this bombardment will be repeated until they surrender.
-
Full collaboration between the United States and the British Government in developing Tube Alloys for military and commercial purposes should continue after the defeat of Japan unless and until terminated by joint agreement.
. . . . . . . . . . . . . .
F[RANKLIN] D R[OOSEVELT]
W[INSTON] S C[HURCHILL]