Dhameystir weedha soo socota: Janaayo 1917, Jarmalku wuxuu dib u bilaabay dagaalkii maraakiibta hoostiisa mara ee aan xadidnayn isagoo rajaynaya inuu ku qasbo Britain inay bilowdo wadahadalada nabadeed. Wasiirka Arimaha Dibada Jarmalka Arthur Zimmermann ayaa casuumay
Mexico si ay ugu biirto dagaalkii ay Germany kula jirtay Maraykanka hadii Maraykanku ku dhawaaqo dagaalkii ay ku qaadeen Jarmalka Telegram-ka Zimmermann. Taas bedelkeed, Jarmalku waxay Mexico u diri lahaayeen lacag waxayna ka caawin lahaayeen dib u soo celinta dhulalka Texas, New Mexico iyo Arizona ee Mexico ay ku weysay dagaalkii Mexico iyo Mareykanka 70 sano kahor. Sirdoonka Ingiriiska ayaa qabtay telegraamkii waxayna u gudbiyeen Washington. Wilson wuxuu shacabka usoo bandhigay warqada Zimmerman dadka Maraykanka ahna waxay u arkeen inay tahay "casus belli" - oo ah sababo dagaal.