World War I

Life inside this was dirty, disease-infested, dangerous and smelled of dead bodies

This distorted or hyped up the news to evoke sympathy for a cause

This signaled an end to the war, it is the official treaty signed by the countries fighting

 Sunk by a German U-boat, killing 128 Americans. One of the reasons the US went to war.

This telegram was intercepted by the British. It was one of the reasons the US went to war. 

These were two new weapons introduced during WWI

Expanding an empire by conquering weaker nations was called

This was one of the weaknesses of the Treaty of Versailles

If not for this system, the war might have only involved 2 nations: Austria-Hungary & Serbia

This is one reason countries were ready to go to war. It involved building up their troops. 

This was Wilson's plan for peace and was designed to avoid future wars

As part of this treaty signed in France, Germany was made to pay war reparations (money)

His assassination sparked World War I