[quote=dreamshell]
Well, I'm not crazy about the name 'World Governing Entity.' Something catchier like... "Unigov" (a colloquialism) or UGO (United Global Order), maybe? Whatever, small beans, I guess, but I can be a stickler about trivial nonsense. =PI'm a bit curious how a desolate, war-torn, resource-poor Earth would be able to come out the victor in a war against a technocratic, resource-rich Mars, save perhaps by a combo of some sort of "space race" scenario to claim the rest of what the Solar System has left to offer and just outright seizing Martian vassals and pillaging their goodies. Is that the way of things?I also fail to see why Mars would even bother with Earth during its own golden age, but as I don't see any mention of it in the truncated sheet, maybe you've dropped that.I'm wondering if the Grand Coalition would evolve into a less greedy-by-necessity society driven by desperate conquest and consumption and more of a market-based one that values trade and innovation, especially as humanity ventures beyond its home system and reaps the benefits of others.And hey, where's the AI that's gained self-awareness? Can't have a space opera without at least one. ;)Anyway, mostly dig it. Like 90-95% of it. ;)
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UGO could work better.

The GC is pretty much evolving to what you said; they're in many ways by 2512 already like that. The interstellar civil war was pretty much a wake up call that colonies nee greater autonomy even if the GC still has the ideal of keeping all of mankind united [a venture far easier said than done]. 

As for the martian invasion part, yeah it probably wouldn't have been for resources. The motive is much more due to trying to stop earth from rebuilding and becoming a serious rival, something they failed to avert as they acted too late. What they didn't take into account was the consolidating of large blocs that formed in the wake of the mass death that actually did a pretty good job at rebuilding things enough to launch spaceships to the moon and spread out from there. The invasion caused the formation of the UGO, which probably would engage in what you said against mars through the later parts of the 23rd century.

Though the big winning factor for the UGO would have to be the invention of the jump drive, which after a mere few years of having made the UGO rapidly dominate the solar system. By the time mars made their own jump drive ship, the UGO already was setting up interstellar colonies. Eventually mars just assimilated into the GC, which only happened in the year 2357.