China turns communist and the Cold War reaches Asia

H1 History - syllabus 8838, 2027

What this lesson teaches

  • I can judge how the Cold War played out in Korea and Cuba, as the superpowers competed and looked for allies.

    Syllabus 8838, Theme I, Learning Outcomes. evaluate the manifestation of the Cold War conflict across different contexts over time

Make a guess

In October 1949 Mao's communists won China's civil war. How do you think Washington saw this?

  1. As good news, because Mao would break with Stalin.
  2. As a major Cold War defeat that made Asia a second front.
  3. As a local civil war of little concern to the USA.
Show the answer

As a major Cold War defeat that made Asia a second front.

Critics called it the loss of China. After the 1950 Sino-Soviet alliance, communism looked like one bloc expanding in Asia.

The communist victory in China in 1949 and the Sino-Soviet alliance made Asia a second front of the Cold War.

In October 1949, Mao Zedong proclaimed the People's Republic of China after the Chinese Communist Party defeated the Nationalists, who retreated to Taiwan. Many Americans saw this as the "loss of China", and the Truman administration faced fierce criticism at home.

In February 1950, Mao and Stalin signed the Sino-Soviet Treaty of Friendship and Alliance. The two largest communist states were now formally allied. To Washington, communism looked like a single bloc expanding in Asia.

The balance of power was shifting. The USSR had tested an atomic bomb in August 1949, ending the US monopoly. In January 1950, Secretary of State Dean Acheson described a US "defensive perimeter" in the Pacific. It did not mention Korea. Communist leaders may have read this as a sign that the USA would not fight for it.

In April 1950, the secret report NSC-68 argued that the Soviet Union sought to extend its authority across the world. It called for a rapid build-up of American military, political and economic strength. Truman did not fund it fully until war broke out in Korea.

People's Republic of China
Proclaimed October 1949.
Sino-Soviet Treaty
February 1950.
Acheson's perimeter speech
January 1950; Korea left out.
NSC-68
April 1950; calls for a rapid military build-up.

Real examples to use

Soviet atomic test, 29 August 1949

The US monopoly ended years earlier than expected, weeks before Mao's victory. Together they made 1949 feel like a turning point.

China White Paper, August 1949

The State Department blamed the Nationalists' own failures for their defeat. Critics in Congress accused Truman of 'losing China'.

McCarthy at Wheeling, 9 February 1950

Senator Joseph McCarthy claimed communists worked in the State Department. Domestic pressure made Truman less willing to look weak in Asia.

Worked example: Explaining why Asia mattered after 1949

An essay asks why the Cold War spread to Asia.

  1. Event: the communist victory in China changed the balance of power in Asia.
  2. Alliance: the 1950 Sino-Soviet Treaty made communism look like a united bloc.
  3. Perception: US leaders, under domestic pressure, feared further communist gains.
  4. Result: Asia became a second front where the USA applied containment.

Watch out for this

The USA had always planned to defend South Korea.

Acheson's January 1950 speech left Korea outside the defensive perimeter. The decision to fight was a response to the invasion in June 1950.

Check your understanding

Why did the communist victory in China raise US fears in 1949-50?

  1. It seemed to create a united communist bloc after the 1950 treaty.
  2. China invaded Japan's islands in the East China Sea.
  3. China took its permanent seat on the UN Security Council in 1950.
Show the answer

It seemed to create a united communist bloc after the 1950 treaty.

Right. The alliance made communism look stronger and more unified in Asia.

Sources and context

Background reading for this chapter.

  • Truman explains American action

    Paraphrase of President Truman's statement on the situation in Korea, 27 June 1950.

  • A secret plan for national security

    Paraphrase of NSC-68, a top secret report to the US National Security Council, 14 April 1950.

  • China's foreign minister responds to a ceasefire proposal

    Paraphrase of a statement by Chinese Foreign Minister Zhou Enlai, 22 December 1950, as cabled to the UN General Assembly President and reported by the US representative at the UN.

  • The Korean Armistice Agreement

    Paraphrase of the Korean Armistice Agreement, signed at Panmunjom, 27 July 1953.

  • Stalin replies to Kim Il-sung, January 1950

    Paraphrase of a telegram from Joseph Stalin to Terenti Shtykov, the Soviet ambassador in Pyongyang, 30 January 1950, from the Russian Presidential Archive, in the English translation published by the National Security Archive and the Cold War International History Project. Paraphrased because the translation's licence is unclear.

  • the UN Security Council acts, 27 June 1950

    Extract from United Nations Security Council Resolution 83 (1950), adopted at the Council's 474th meeting on 27 June 1950 by 7 votes to 1 (Yugoslavia). The Soviet representative was boycotting the Council. A UN record.

  • Truman's advisers meet at Blair House, 25 June 1950

    Extract from a memorandum of conversation by Ambassador at Large Philip Jessup, recording the dinner meeting of President Truman and his senior advisers at Blair House, Washington, on the evening of 25 June 1950. Top Secret. Foreign Relations of the United States, 1950, volume VII, document 86. A US government document in the public domain.

  • China's warning, October 1950

    Extract from a circular telegram from Acting Secretary of State James Webb to certain US diplomatic and consular posts, Washington, 5 October 1950, two days before American forces crossed the 38th parallel. Secret. Foreign Relations of the United States, 1950, volume VII, document 614. A US government document in the public domain. (Abbreviations as in the original telegram.)

  • MacArthur meets Truman on Wake Island, 15 October 1950

    Extract from "Substance of Statements Made at Wake Island Conference on 15 October 1950", compiled by General Omar Bradley, Chairman of the Joint Chiefs of Staff, from notes kept by the officials who came from Washington. Top Secret. Foreign Relations of the United States, 1950, volume VII, document 680. A US government document in the public domain.

The Wise Otter

Getting your study space ready