A policy of extending a country's power and influence

A formal agreement between two or more nations or powers to cooperate and come to another's defense.

Patriotic feeling, principles, or efforts.

A world organization formed in 1920 to promote international cooperation and peace

Treaty signed, France on June 28, 1919 that officially ended World War 1

Ditches dug by soldiers for protection from enemy attacks.

Telegram intercepted that suggested an alliance between Germany and Mexico.

temporary suspension of hostilities by agreement of the warring parties; truce: