N'oge a na-alụ Agha Ụwa Mbụ (1914-1918), mba Meksiko esoghị lụọ agha ahụ. N'oge a, Mexico nọ na-eche banyere mgbanwe ọchịchị ya
(1910-1920) nke mere n'otu oge ahụ dịka Agha Worldwa Mbụ. Na Jenụwarị 1917, ndị ọrụ Britain jidere telegram nke onye nnọchi anya German na Mexico Heinrich von Eckardt zitere site n'aka Arthur Zimmermann, odeakwụkwọ steeti maka mpụga nke Alaeze Ukwu German. Na telegram ahụ, Germany tụụrụ Mexico aro na ọ bụrụ na United States esonye n'agha ahụ, Mexico kwesịrị isonyere ma kwado Ọchịchị Etiti. Iji gosi ekele, ma ọ bụrụ na Central Powers merie, Mexico ga-eweghachi ókèala Texas, New Mexico na Arizona nke Mexico tụfuru n'agha ya na United States n'oge agha Mexico na America na 1848. E jidere telegram ahụ, nke a maara dị ka Zimmermann Telegram mgbe a na-eziga telegram ahụ na ụlọ ọrụ nnọchite anya German na Washington, DC ka e zigara ya Mexico City. Mexico mesịrị jụ ozi telegram ahụ ma nọgide na-anọpụ iche n'oge agha ahụ.