Mezue ahịrịokwu na-esonụ: N'oge mkparịta ụka nke British War Cabinet na-eduga na nkwupụta ahụ, agha ahụ ruru oge nkwụsị. Na Western Front, mmiri ga-ebu ụzọ tụgharịa maka Central Powers n'oge opupu ihe ubi nke 1918, tupu mkpebi siri ike
na-atụgharị na ihu ọma nke ndị Allies site na July 1918 gaa n'ihu. Ọ bụ ezie na United States kwupụtara agha na Germany n'oge opupu ihe ubi nke afọ 1917, ọ nwetaghị ndị mbụ nwụrụ na ya ruo na 2 Nọvemba 1917, bụ mgbe Onye isi ala Woodrow Wilson ka nwere olile anya izere iziga nnukwu ndị agha n'agha ahụ. A maara ndị agha Russia ka ha na-adọpụ uche site na mgbanwe nke Russia na-aga n'ihu na nkwado na-eto eto maka ndị Bolshevik, mana Gọọmentị Oge nke Alexander Kerensky ka nọ n'agha ahụ; Russia lara azụ naanị mgbe njedebe nke mgbanwe ahụ na 7November 1917.