¹     Why do people fight wars? Sometimes it is to get more land. Sometimes it is to show that your country is strong. Sometimes it is to stop enemies.
 
²     Ways of fighting have changed. Armies used to use swords, spears, and arrows. Then guns were invented.
 
³     When World War One came, there were new weapons. Men had airplanes, tanks, and gas. The gas was not what you use in a car. It was like green air. It would sink down to the ground into trenches.
 
⁴     The soldiers were in the trenches. It would make some soldiers sick. It would kill others.
 
⁵     Why did World War One start? There are many reasons.
 
⁶     Some countries put their armies together. They could show how strong they were that way.
 
⁷     Some wanted to prove that their country was the best. The French said that they were the best. The Germans said they were the best.
 
⁸     Then one day, an important man was killed. He was an Archduke. He was killed in the small country of Bosnia.

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