Great War: Breakthroughs

Is it the war to end all wars - or war without end? It is 1917, and the United States are fighting a war on two fronts. In the north, from the Pacific to Quebec, US forces in the air and on land are locked in battle against Canada and Great Britain. To the south, at the heart of a line that stretches from the Gulf of California to the Atlantic, General Custer intends to do what none of his prede...