A speedy drafting process was required because Roosevelt, Churchill and their political and military advisors converged for the Quadrant Conference at the Citadelle of Quebec on 17 August, hosted by the Prime Minister of Canada, Mackenzie King. Most of the discussions were about the invasion of France. Although the Quebec Agreement was a bilateral one to which Canada was not a signatory, the British felt that Canada's contribution to Tube Alloys was significant enough that high-level representation was appropriate. King was therefore asked to nominate a Canadian member of the Combined Policy Committee, and he selected C. D. Howe, the Canadian Minister of Munitions and Supply. Stimson, Bush and Conant would be the American members, while Field Marshal Sir John Dill and Colonel J. J. Llewellin would be the British members.