The US Department of State released the Acheson–Lilienthal Report, a proposal for the international control of nuclear weapons.

The United States Department of State (DOS), or simply the State Department, is an executive department of the U.S. federal government responsible for the country's foreign policy and relations. Equivalent to the ministry of foreign affairs of other countries, its primary duties are advising the U.S. president on international relations, administering diplomatic missions, negotiating international treaties and agreements, protecting citizens abroad and representing the U.S. at the United Nations. The department is headquartered in the Harry S Truman Building, a few blocks from the White House, in the Foggy Bottom neighborhood of Washington, D.C.; "Foggy Bottom" is thus sometimes used as a metonym.

The Report on the International Control of Atomic Energy was written by a committee chaired by Dean Acheson and David Lilienthal in 1946 and is generally known as the Acheson–Lilienthal Report or Plan. The report was an important American document that appeared just before the intensification of the early Cold War. It proposed the international control of nuclear weapons and the avoidance of future nuclear warfare. A version, the Baruch Plan, was vetoed by the Soviets at the United Nations.