Analysis of information sources in references of the Wikipedia article "Hội nghị Yalta" in Vietnamese language version.
Voting procedures and the veto power of permanent members of the Security Council were finalized at the Yalta Conference in 1945 when Roosevelt and Stalin agreed that the veto would not prevent discussions by the Security Council. In April 1945, new U.S. President Truman agreed to General Assembly membership for Ukraine and Byelorussia while reserving the right, which was never exercised, to seek two more votes for the United States.
