WW1 - Alliances
Over time, countries throughout Europe made mutual defense agreements that would pull them into battle. These treaties meant that if one country was attacked, allied countries were bound to defend them. Before World War 1, the following alliances existed:
- Russia and Serbia
- Germany and Austria-Hungary
- France and Russia
- Britain and France and Belgium
- Japan and Britain
Austria-Hungary declared war on Serbia, Russia got involved to defend Serbia. Germany seeing Russia mobilizing, declared war on Russia. France was then drawn in against Germany and Austria-Hungary. Germany attacked France through Belgium pulling Britain into war. Then Japan entered the war. Later, Italy and the United States would enter on the side of the allies.
