Complete this paragraph about how the countries of Europe plunged into
World War I:
When
declared war on Serbia, ,
came to the aid of its
"little brother” Serbia. Germany then had to come to the aid of Austria-
Hungary, which meant that
would need to help Russia. Finally,
was bound to help France in the event of war with Germany.
![Complete this paragraph about how the countries of Europe plunged into World War I When declared war on Serbia came to the aid of its little brother Serbia Germ class=](https://us-static.z-dn.net/files/d8e/87582dd52932aed4c6654c7b44ceb7a6.png)