With four years of peace and progressive reform and a booming economy (due to the strong French and UK wartime demand for US imports), you would think Woodrow Wilson would cruise to an easy re-election. You would be wrong.
In the wake of Pancho Villa's attack on the town of Columbus, New Mexico, the US Army sends an expeditionary force into Mexico in pursuit of Villa and his fighters, commanded by Gen. John "Black Jack" Pershing.
German East Africa was the last holdout among German colonial possessions. Neighboring Portuguese and Belgian soldiers, as well as South Africans, joined in to help the British, although the British were not always happy to accept their assistance.
The fighting continued at Verdun as the Russians prepare an offensive of their own to relieve the pressure on France. A German U-boat mistakenly sinks a passenger ferry in the English Channel, triggering another controversy over submarine rules of engagement.
Turkish forces defeat a British force attempting to take Baghdad, but that doesn't stop the British and the French from divvying up the postwar Middle East. Also, the Russians advance, the Italians don't.
Venustiano Carranza is gaining momentum in the struggle over the future of Mexico, but Pancho Villa is not ready to give up. The Germans hope to lure the US into intervening, then Pancho Villa decides provoking the US is also in his interests.
With numbers of new volunteers declining every month, the British government wrestles with the issue of conscription. Across Europe, all the Great Powers are feeling the manpower and other shortages created by the war.