France was almost completely exhausted by 1918, their army was in a bad state, but Britain was still strong, and America was positively bouyant and becoming stronger by the day.
By May 1919 the US Army would have been fully mobilised, and twice the size of the British Army. The US and Britain had plans for a heavy bomber campaign in 1919-20 that would have rivaled that of the 8th Air Force in 1943-44. The German cities would have taken a very severe pounding.
Heavy bombers in WWI were very formidable opponents, much like the B-29 in WW2. They were nearly as fast as opposing fighters, and just as heavily armed with few blind spots.
Germany would have collapsed completely in 1919 had she fought to the end, without a doubt.
Andy wrote:Germany was decisively defeated in World War I. They were in full retreat by 1918 and a third of their army had been destroyed. It was over, and they only said that the German Army had been stabbed in the back because they were still on French Soil by the end. The Allies would most definitely have reached Berlin by 1919 or 1920, Germany did not stand a chance by the end of their offensive. It was over and they knew it, that it why they wanted peace. They had been defeated.