1. What three European countries signed an alliance called the Triple Entente?

2. What is it called when a country expands its influence and power into a large empire?

3. Which two countries had become wealthy through creating vast worldwide empires?

4. What single event triggered the start of World War I?

5. Who was Archduke Ferdinand?

6. What country declared war on Serbia at the very start of World War I?

7. Why do some historians believe that Germany wanted to start World War I?

8. Which side was the United States on at the start of the war?

9. Which of the following was a cause that contributed to the start of World War I?

10. World War I was mostly fought between the countries of what continent?