Yeah, Nazi Germany is a bad example, considering the Empire lasted such a short time, and the government itself became a bigger threat to the people than its enemies. Even Admiral Lleyton wouldn't have rounded people up on a racial basis and executed them (Other than Founders). I think a better example would have to go further back in history, like the Roman Empire. But Empires like that were only able to thrive as long as their country economically thrived, and you can't economically thrive if you're isolated. To your point about the Federation having no important allies, I wasn't referring to the Federation, I was referring to Earth. You think planets like Vulcan would remain in the Federation if Earth became a military dictatorship? The Federation would fracture and die within a generation, even if the AQ won the war against the Founders. The Earth would pretty much turn into post-USSR Russia. You can't control somebody through fear, and they will give you the minimum necessary not to get killed. You can control somebody through aligning their interests to yours, and they will give you as much as they can. Romulus and Cardassia control their people by fear, they end up in shambles. The Federation and Ferenginar control people through alignment of interests, and they come out of the war stronger than anyone else.