World War 1 began from alliances forming after a series of attacks. The Zimmerman Telegram was a low key point in the war. The telegram was when Germany was persuading Mexico to bomb the boarder and take back the southern half of the us that they had lost in the Mexican-American war. The US intercepted this message and Mexico was not able to go on with the plan. worl war 1 also haD imperialism, natiionslim, and isolationism. camp banning was a great force in world war 1 because of trianing soldiers.