"There are decades when nothing happens, and there are weeks when decades happen." -V.I. Lenin This is the first of a series of discussions about critical years in the 20th century. As the First World War entered its 4th year, the mighty German army had the Entente powers on the ropes. But two men who started the year 1917 uninvolved with the Great War would soon make decisions that would determine the outcome, and shape geopolitics for the rest of the century.