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Special Features

  • A Korean War Timeline

    A Korean War Timeline

    The Korean War timeline contains over 200 entries summarising the key events of the war and its aftermath. Each entry contains a flag indicating which country or organisation the entry refers to. Go to the timeline ...

  • Animated Battle Maps

    Animated battle maps

    Click here for maps of the most important battles fought by Australians during the Korean War. See detailed animated explanations of the battles of Kapyong, Maryang San and other Australian land, air and sea operations. Access the maps ...

  • Charlie Green

    Charles Green's story

    Lt Colonel Charles Green was the first commander of an Australian infantry battalion in battle since the formation of the nation’s regular army in 1949. A veteran of WWII, he led 3rd Battalion Royal Australian Regiment in Korea until he died of wounds received at Chongju on 1 November 1950. Read Charles Green's story ...

  • The Cold War

    What was the Cold War?

    During the Cold War, China, led by Mao Zedong, and the Soviet Union, led by Joseph Stalin, joined forces to assist North Korea in its invasion of South Korea. Find out more about the Cold War ...

  • War at Sea

    Royal Australian Navy in the Korean War

    The Korean Peninsula is bounded by the Yellow Sea in the west, the Korea Strait to the south and the Sea of Japan in the east. The Royal Australian Navy was among the first of the United Nations forces to respond to the Korean War. From 1950 to 1953 eleven Royal Australian Navy ships patrolled the seas around Korea, escorting supplies, supporting landings and bombarding the enemy coast. Read more about the RAN in Korea ...

  • Captain Reg Saunders

    Reg Saunders' story

    Reg Saunders was the first Australian Aboriginal army officer. He led C Company 3rd Battalion Royal Australian Regiment during the Korean War. Reg's father and uncle fought in World War I, and his brother Harry was killed in action in New Guinea. Reg began his military career with the AIF during WWII. Read the Reg Saunders story ...

  • The Battle of Kapyong

    Battle of Kapyong

    In late April 1951 the 3rd Battalion of the newly formed Australian Regular Army won a battle honour and a United States Presidential Citation for its defence of Kapyong. In a day and night of fierce fighting the Australians suffered 94 casualties and halted the communist advance. Find out more about the Battle of Kapyong ...

  • War in the Air

    Royal Australian Airforce in the Korean War

    Flying the P51D Mustang fighter, and later the Meteor, 77 Squadron Royal Australian Air Force was in action within days of the North Korean invasion of South Korea. The Australians flew ground attack missions and made a significant contribution to slowing the communist advance. Read more about the role of the RAAF in Korea ...

  • Australian Nurses

    Australian nurses in the Korean War

    With the outbreak of the Korean War, Australia became responsible for the air evacuation of British Commonwealth casualties from Korea to the hospital in Iwakuni, Japan. RAAF nurses, based at Iwakuni, served on RAAF casualty evacuation aircraft and at the casualty staging section in Seoul. Read more about the nurses ...

The War Begins – the Invasion of South Korea

Background to the invasion

North Korea, under Kim Il-sung, had been secretly preparing to invade South Korea for several years...

Photo of US and 3RAR soldiers security searching the loads of Korean refugees
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The Soviet Union (USSR) supplied weaponry, trained the North Korean armed forces and its experienced WWII generals devised the plan for the invasion. When the Chinese communists under Mao Zedong won their war with the nationalists in 1949, Mao too was able to assist North Korea. He sent back 20,000 Koreans who fought with the Chinese communists.

Joseph Stalin was at first reluctant to support Kim’s proposed invasion because he feared a major war with the United States of America (USA) might be the outcome. By early 1950 he changed his opinion, partly because the USSR had successfully tested its first atomic bomb in 1949. This would have the effect of making the USA more cautious in any response to any USSR military move. Secondly, Stalin had reason to believe the USA would not support South Korea if North Korea invaded. In January 1950 the American Secretary of State Dean Acheson implied in a speech that South Korea was not a vital area of interest to USA. In addition, the USA House of Representatives rejected a bill to send financial aid to the south. Though the bill was passed a month later, this also suggested to Stalin that America did not care much about Korea and would stand aside if the north invaded the south.

In April 1950 Kim Il-sung visited Moscow, and Stalin finally agreed to support an invasion. The plan was, to take all of South Korea in three weeks, before American intervention, should it happen, could be organised.

In mid-June North Korean units were secretly moved into position close to the 38th parallel while North Korea’s insurgents operating deep in South Korea intensified their activity. To counter the insurgents the south had to maintain a portion of its fighting troops far from the border. On 25 June, at 4.40am the North Korean assault began.

Korean War Teaching Aids

Teaching and learning activities for the classroom

The Korean War, the political background

The course and cause of the Korean War was mainly determined by nations and leaders outside of Korea. Your task is to search the website Australia’s Involvement in the Korean War to find answers to the following questions about the politics of the war.

Photograph of Syngman Rhee Photo portrait of Sir Robert Menzies Photo portrait of Harry Truman Portrait of Kim Il-sung Photo portrait of Mao Zedong Photo portrait of Joseph Stalin

Answer each question in two or three full sentences.

  1. What was the Cold War?
  2. How was the Cold War connected to the Korean War?
  3. Who were the anti-communist leaders and which one was the most powerful?
  4. Who were the communist leaders and which one was the most powerful?
  5. What is the connection between the Korean War and nuclear weapons?
  6. How did North Korea’s allies help it during the Korean War?
  7. Why did Australia become involved in the Korean War?
  8. Which leader did most to prolong the war and why?

Download Questions (PDF, 1 page 40 KB)