matthew hannigan 2

events leading up to the US joining ww1

Period: Aug 28, 1914 to Apr 30, 1917

delaration of nutraility

Oct 27, 1914

the us trys to stay nutral to stay out of the war and keep trade

the sinking of the Lusitania

May 31, 1915

this angered meny poepll ebecause germaan s where responceable for these deaths

sussex plelege lasted

Period: May 28, 1916 to Feb 27, 1917

the plelge saying that german u boats cant shoot at un armed UD vessils

zimmermann note

Mar 31, 1917

this was a note saying to mexico that if they attacted the us that they will get there land back

amrican ships where tageted by german u boats

Mar 31, 1917

the us dclares war

Apr 28, 1917