Causes of Conflict in the 20th Century

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Causes of Conflicts in the 20th Century

World War 1

  • Assassination of Arch Duke Franz Ferdinand of Austria-Hungary. He was the heir to the throne.
  • Austria-Hungary declared war on Serbia. Russia had a treaty with Serbia and mobilised their army against Austria-Hungary.
  • Germany had a treaty with Austria-Hungary and then declared war against Russia.
  • France had a treaty with Russia and then declared war on Germany.
  • Britain was allied to France and had a loose treaty and declared war on Germany.
  • This brought in commonwealth nations such as Australia, Canada, India, New Zealand and South Africa.
  • USA entered the war because German submarines were affecting supply routes to England.

World War 2

  • Invasion of Poland by Germany in 1939.
  • Invasion of China by Japan in 1937.

Vietnam War

  • In 1945 Vietnam was declared independent but Britain and China helped the French to return.
  • In 1954 the Viet Minh attack French forces. Peace talks were held and the country was divided into North Vietnam and South Vietnam.
  • The USA was then worried about the spread of communism so sent troops to Vietnam.

Korean War

  • North Korea wanted to unite the country and be a communist nation while the South wanted to resist communism. Russia also wanted to spread communism and helped the North.

The Gulf War

  • Saddam Hussain had a big debt left over from the Iraq-Iran War and needed some way of coming up with the money. He thought oil was the best way so he attacked their southern neighbours Kuwait.
  • Kuwait then asked the US for help to get rid of the Iraqis.
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