Quadruple Plan and African Theater
The war plan was simple: Germany and Austria hold off the Russians, while Greece and the Ottomans attacked Africa through Sinai and France keep the British stopped at the islands. The plan would have worked if the troops of New England, Brazil and Italy in Africa had quickly stopped the Greek-Ottoman forces and started push to them back. The former colonies of Germany and France were also grabbed.
Italy pushed the French to middle France, which caused the forces to counterattack the Italians, liberating the shore for the British to land in Brittany and advance to Paris. France had surrendered before 1916. However, on the Russian front, the German-Austrian combined forces reached St Petersburg and forced the Emperor's surrender while revolutions erupted in Moscow. The time was enough for the New English-Brazilian-Mexican forces to land in France and Egypt, so when the Austrian-German troops reached the front, it was close to Frankfurt, and Vienna was close to falling. Austria surrendered, and Germany pleaded for a peace treaty. All that were left were Greece and the Ottoman Empire. Greece followed Germany and also signed a peace treaty. The Ottomans refused to end the war even though troops reached from Europe and Asia. The Ottoman Empire surrendered by 1918.
At the end, the Western Alliance, fearing a new war against Germany and Greece, kept them without debt, and holding most of their pre-war territories, but not the colonies. That proved to be effective. However, it made the rise of Fascist/Nazi regimes in Yugoslavia Austria, Hungary and France easy. Austria and Hungary were defined the reason of the war together with the French, and both were forced to pay for the war costs.