[@Dinh AaronMk] My other ideas are (honestly in no particular order):

Finland (Finnish Civil War begins early, due to Russia's situation, and the White Finns win and form a constitutional Republic of sorts. Begins a program of buildup overall, seeking to bring the nation into a powerful position with a powerful military.)

***Brazil (Got triggered by Germans sinking their ships still, and basically took to assaulting the Germans at sea and building up some navally to do so. Capturing some ships, however, they also take these back home and ride out the rest of the war providing some support to the Entente before their diverging government decides to build up. With the USA not involved and a desire to become a world power, Brazil begins a campaign of internal unification and industrial/military buildup. Maybe triggers Argentina or such, etc. XD)

***Egypt (Egypt makes such a fuss with rebellion during WW1 that the taxed Ottomans to have to let them go, and they buck the British claim and efforts to make them a protectorate (in due time). Gets a constitutional Monarchy or a really good Wafd that forms around this, driving a sense of Egyptian nationality and civil rights and such yet seeking to modernize. Kinda like the Meiji Restoration in this sense, except Egypt not Japan. 

Seeks to build up and industrialize, reinforcing its strength and seeking to take advantage of the Suez and trade to boot. Maybe took some British stuff during their resistance against them, resulting in a basis from which to make stuff like their own tanks and guns. Could engage in trade with others to try to bolster resources and position.)

***Netherlands (idk yet, heard someone claimed Netherlands from Yam so leaving this blank just in case)

Any of these viable for a nice alternate history twist?