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beginning of ww1
it started because assassination of archduke frainz ferdin -
german proclamation
british isle were to be a war zone and any ship that comes in well be sunk -
sinking of the lusitania
british passenger ship was torpedoed and sunk by a german submarine kiling more than 120 americans -
sussex pledge
germany promise to not sink anymore ships with out warring -
failure of diplomacy
germany resumes u boats attacks on the united states -
zimmerman telegram
german plan to ask the mexicans to attack united states in exchange for tx nm and az -
us enters the war
they got fed up with everything and enter the war -
selective service act
the government now has the power to draft men over the age of 21