Wikipedia:Today's featured article/January 7, 2019
The Quebec Agreement between the United Kingdom and the United States outlined terms for coordinated scientific development of nuclear energy. It stipulated that the US and UK would pool their resources to develop nuclear weapons, and that neither would use the weapons against another country without mutual consent, or pass information about them to other countries. The agreement merged the British Tube Alloys project with the American Manhattan Project, and created the Combined Policy Committee to control the joint project. It was signed by Winston Churchill and Franklin D. Roosevelt on 19 August 1943 during World War II, at the Quadrant Conference in Quebec City in Canada. Although Canada was not a signatory, the agreement provided for a Canadian representative on the Combined Policy Committee in view of the country's contribution. On 7 January 1948, the Quebec Agreement was superseded by a provisional agreement allowing for limited sharing of technical information. (Full article...)
Part of the History of the Manhattan Project featured topic.