. The Zimmerman Note was the biggest reason that America joined WWI

. It was a telegram that Germany had sent to Mexico sent by the German Foreign Minister Arthur Zimmerman to the Minister of Mexico

. The telegram stated that Germany wanted Mexico to help them attack the US because of how close Mexico is to America

. Mexico would have been granted the land the US had taken from them in exchange for their services

. Mexico declined because it was already involved in the Mexican Revolution

. The US would soon join WWI

The Zimmerman Note