Mezue ahịrịokwu a: Na Jenụwarị afọ 1917, ndị Jamanị maliteghachiri iji ụgbọ mmiri ha na-alụ agha n'enweghị onye na-egbochi ha, ka ha nwee ike ịmanye ndị Briten ka ha malite mkparịta ụka udo. Minista mba ofesi nke Germany, Arthur Zimmermann kpọrọ òkù
mgbanwe-dọwara Mexico isonyere agha dị ka Germany ally megide United States ma ọ bụrụ na United States kwupụtara agha na Germany na Zimmermann Telegram. Na nzaghachi, ndị Germany ga-ezigara Mexico ego ma nyere ya aka nwetaghachi ókèala Texas, New Mexico na Arizona nke Mexico tụfuru n'oge agha Mexico na America afọ 70 gara aga. Ndị ọrụ nzuzo Britain jidere telegram ahụ ma zigara ya Washington. Wilson wepụtara akwụkwọ ozi Zimmerman n'ihu ọha ma ndị Amerịka hụrụ ya dịka "casus belli" - ihe ga-eme ka a lụọ agha.