An agreement between countries to aide one another during a war.

The murder of a prominent person by sudden or secret attack.

The belief it is important for a nation to have a strong military.

Policy of extending country's borders by taking over other countries.

Spreading information designed to make people feel a certain way. Usually false.

Disputed ground between the front lines of two opposing armies.

A war that is unrestricted. Countries use everything they have to win.

An alliance between Britain, France, and Russia

An alliance between Germany, Austria-Hungary, and Italy