Kaiser Frederick III of Germany has always been an interesting figure to me. He seemed to have so much potential in his youths, combining a knack for military skill with an interest in the increasing progressivism that defined the era he lived in. Of course, his reign would but cut to only a few months by his cancer caused by his smoking habit. But lets say, for whatever reason, Frederick never develops his smoking addiction, and lives to be longer. What are some potential effects of this? I've heard it said that if he lived longer, he could have either prevented WWI or make a conflict much more favorable to Germany. Is this true? I'm working on a TL where a plan to include him, but I want to learn some butterflies of his reign being extended before I start crafting ideas.