Cold War Origins Timeline

  • Yalta Conference

    Yalta Conference
    The three leaders agreed to demand Germany’s unconditional surrender and began plans for a post-war world.
  • Potsdam Conference

    Potsdam Conference
    The conference established a Council of Foreign Ministers and a central Allied Control Council for administration of Germany.
  • United Nations

    United Nations
    The United Nations was born of perceived necessity, as a means of better arbitrating international conflict and negotiating peace than was provided for by the old League of Nations.
  • UN Atomic Energy Commission

    UN Atomic Energy Commission
    The United Nations Atomic Energy Commission (UNAEC) was created by the United Nations as a resolution "to deal with the problems raised by the discovery of atomic energy."
  • Long Telegram

    Long Telegram
    Kennan wrote the Long Telegram outlining his opinions and views of the Soviets; "According to Kennan, the Soviets' view of the world came from a traditional 'Russian sense of insecurity...'".
  • The Iron Curtain

    The Iron Curtain
    The Iron Curtain was the name for the boundary dividing Europe into two separate areas from the end of World War II in 1945 until the end of the Cold War in 1991.
  • Containment Policy

    Containment Policy
    Containment was a United States policy using numerous strategies to prevent the spread of communism abroad. A component of the Cold War, this policy was a response to a series of moves by the Soviet Union to enlarge its communist sphere of influence in Eastern Europe, China, Korea, and Vietnam.
  • Truman Doctrine

    Truman Doctrine
    Truman established that the United States would provide political, military and economic assistance to all democratic nations under threat from external or internal authoritarian forces.
  • Marshall Plan

    Marshall Plan
    Also known as the European Recovery Program, channeled over $13 billion to finance the economic recovery of Europe between 1948 and 1951.
  • Soviet Blockade in Berlin

    Soviet Blockade in Berlin
    Was one of the first major international crises of the Cold War. During the multinational occupation of post–World War II Germany, the Soviet Union blocked the Western Allies' railway, road, and canal access to the sectors of Berlin under Western control.
  • Berlin Airlift

    Berlin Airlift
    The Berlin Blockade was one of the first major international crises of the Cold War. During the multinational occupation of post–World War II Germany, the Soviet Union blocked the Western Allies'.
  • NATO

    NATO
    This alignment provided the framework for the military standoff that continued throughout the Cold War.
  • NSC-68

    NSC-68
    National Security Council Report 68 (NSC-68) was a 58-page top secret policy paper by the United States National Security Council presented to President Harry S. Truman on April 14, 1950. It was one of the most important statements of American policy that launched the Cold War.
  • The Korean War

    The Korean War
    The Korean War began when North Korea invaded South Korea. The United Nations, with the United States as the principal force, came to the aid of South Korea. China came to the aid of North Korea, and the Soviet Union gave some assistance.
  • Brinkmanship

    Brinkmanship
    Brinkmanship is a term coined during the Cold War to describe the tactic of seeming to approach the verge of war in order to persuade one's opposition to retreat.
  • Warsaw Pact

    Warsaw Pact
    A mutual defense organization that put the Soviets in command of the armed forces of the member states during World War II.
  • U2 Spy Plane

    U2 Spy Plane
    The Lockheed U-2, nicknamed "Dragon Lady", is an American single-jet engine, ultra-high altitude reconnaissance aircraft operated by the United States Air Force and previously flown by the Central Intelligence Agency.
  • Mutual Assured Destruction

    Mutual Assured Destruction
    (MAD) is a doctrine of military strategy and national security policy in which a full-scale use of nuclear weapons by two or more opposing sides would cause the complete annihilation of both the attacker and the defender.