Chief. The two would work together at the Dumbarton Oaks conference, drafting the UN Charter. When the division was split in January 1943 into a Division of Political Studies and a Division of Economic Studies, Pasvolsky continued to supervise them. He was executive officer of the secretive Advisory Committee on Postwar Foreign Policy, which superseded the Division, returning to the broadly based Advisory Committee concept. UN planning The work of the Advisory Committee led to the drafting of an outline for a "preliminary UN" by Undersecretary Sumner Welles, based on the design of the League of Nations. Pasvolsky and Hull eventually opposed Welles' draft as being too hastily written. The major split was over whether the organization would have a "regional" nature, perhaps with local councils, in which each great power would have most of the responsibility for its region, or would have more centralized structure. Welles, as well as Winston Churchill (and later, Nelson Rockefeller) favored "regionalism," while Pasvolsky and Hull favored a unitary global body. Roosevelt wavered between the two sides. Throughout 1942, Welles took the lead on planning for the UN and in January 1943 discussed a new and full draft charter with Roosevelt. It incorporated Roosevelt's four power "global policemen" but gave them less than absolute veto powers on an Executive Council with "regional" members too. Welles continued to work on the draft, but after a period of political infighting with Hull, he was forced to resign in August 1943. Subsequently, Hull took charge of UN planning, and appointed Pasvolsky to put together a draft charter, which he produced in August. It retained the Security Council, General Assembly and Secretariat, which Welles and Pasvolsky had agreed on, but downplayed regionalism. With the absence of Welles or any other figure with comparable influence, interest and expertise Pasvolsky's ideas and phrasing dominated the drafting henceforward. Before Hull departed for the Moscow Conference (1943), Pasvolsky advised him that economic reconstruction, especially in the USSR, should be a prioritized, while Isaiah Bowman insisted on territorial agreements restricting Soviet expansion. By February 3, 1944, Roosevelt had approved Pasvolsky's latest draft. It incorporated two major departures "that modulated at least the naked appearance of Big Four dominance". Unlike the League of Nations, it entrusted security matters exclusively to the Security Council. However, it widened the Security Council into an 11-member entity, reducing the dominance of the four big powers that Roosevelt had