Office of the Under-Secretary of State for External Affairs : In 1909 Sir Joseph Pope became Canada's first Under-Secretary of State for External Affairs. In the early years of the department, Pope and his staff of eight dealt with the issuance of passports, prepared documents for the use of the Prime Minister and the Cabinet for Imperial Conferences, dealt with the accreditation of foreign consuls, and conducted research into the production of confidential despatches on immigration, trade, fisheries, imperial defence matters along with any other matters which were requested by the Prime Minister. The Department also helped Prime Minister Borden's attempt to conduct an independent foreign policy at the end of the First World War.
On April 1, 1925, O.D. Skelton replaced Sir Joseph as Under-Secretary. The Department of External Affairs expanded throughout the 1920's as Prime Minister Mackenzie King relied more and more on his Under-Secretary for policy advice on the League of Nations, Imperial and Canadian-American relations, trade problems, the growing number of foreign posts, defence, disarmament, the formulation of treaties and a number of domestic issues. After R.B. Bennett became Prime Minister in 1930, Skelton and the departmental staff handled more trade and commercial than international political matters. With the return of Mackenzie King as Prime Minister in 1935 the focus of the Under-Secretary's work was once again on domestic and international issues and, with the approach of the Second World War, the department dealt with the question of Canadian sovereignty in the event of the British declaration of war. This, along with preparing the responses and gathering information on the deteriorating European situation, formulating the means by which the government in general and the department in particular would respond to a war situation, occupied the Under-Secretary and his staff.
O.D. Skelton died suddenly on January 28, 1941 and was replaced by Norman Robertson. During the Second World War Prime Minister King depended on the department to deal with the myriad of problems, both domestic and foreign, faced by a wartime government. These included civil aviation, the combined boards with the United States and Britain, civilian internees, censorship, intelligence and security, and post-hostilities planning. These issues, along with the general management of Canada's foreign relations throughout the war, were handled by the ever expanding department.
Following the war Canada's international reputation increased and the department became involved with almost every international organization and conference. Canada's role in the United Nations and its many specialized agencies, the formation of NATO, the peacekeeping role in Korea and the Middle East, Canadian-American economic and defence relations were handled by various departmental units and the Office of the Under-Secretary. During the 1950's the office was responsible for not only the decision making process in Canada's foreign affairs but the Under-Secretary was also chairman of innumerable inter- departmental committees and also responsible for visiting diplomats and heads of state. RG25 General Inventory