Alright. One more time, just for you. [u]42 years.[/u]

[B]Years.[/B]

Any kind of orbital advantage a fleet would have is irrelevant on the sheer face of the fact that they will never reach orbit before being shot at with enough ordinance to annihilate them before they got anywhere near the system. Why? Because Isaac Newton is the deadliest motherfucker in space. Thats why. Plain and simple the offensive advantage of a fleet in orbit is literally irrelevant unless facing a civilization that has literally no way to stop you. Then your advantage is irrelevant by the nature of simply being massively technologically superior anyway.

Space is not comparable to planetary tactics. You can see through space... Forever. And it takes forever to fly through space. And there is no maximum range in space. And so on.