Dumbarton, duhm BAHR tuhn, Oaks was the name of an international conference held in August-October 1944 at Dumbarton Oaks, an estate in Washington, D.C. The name was also given to the proposals agreed upon at the conference. Thirty-nine delegates from the United States, the United Kingdom, and the Soviet Union met to discuss plans for the creation of an international organization to be called the United Nations. After six weeks of talks, the Soviet delegates, as agreed in advance, left, and delegates from Nationalist China replaced them.