The British Government was the first to realize that such an agreement was needed. On their own they had established beyond question that with their knowledge of the science of atomic energy, a nuclear weapon was both feasible and practicable. However, by late 1941 they also realized that within the timeframe and scale of the ongoing war, the development of a useful nuclear weapon was completely beyond the manpower and material capability of both their country, and their Empire. Only the
After the signing, the
In a section of the Quebec Agreement formally entitled "Articles of Agreement governing collaboration between the authorities of the
The leaders also agreed as follows:
- "we will never use this agency against each other"
- "we will not use it against third parties without each other's consent"
- "we will not either of us communicate any information about Tube Alloys to third parties except by mutual consent"
The agreement also established a Combined Policy Committee composed of Canadian, British, and American representatives to oversee and coordinate weapons development. It was also agreed that "any post-war advantages of an industrial or commercial nature" would be decided at the discretion of the
One of the major strains of the Agreement came up in 1944, when it was revealed to the United States that the United Kingdom had earlier made a secret agreement with Hans von Halban to share nuclear information with France after the war in exchange for free use of a number of patents related to nuclear reactors and filed by Frédéric Joliot-Curie and his Collège de France team. Upon this revelation, the
After the war, the
The Hyde Park Agreement was also entered into by Roosevelt and Churchill when Churchill saw Roosevelt at