A one nation planet equals peace?

What if all governments were forcefully subsumed into one? all national borders abolished? a single planetary government ruled over all the people on earth? this is a very common motif in Science Fiction, especially in near and relatively near future stories, but mostly al of them skip over to the part where this kind of government has already been instated, skipping over the not so friendly transition period. Think about it, you have been a national of whichever country you live in for your entire life, some more fervently than others, but we have all at some point proudly said "I am a... (insert national appellative here)", and at some other (maybe even right after the other) have said "...(insert name of bothersome neighboring country here)... sure are (insert demeaning and/or negative adjective here)".

Then imagine that one day along comes a new world government and says: "You are no longer a ..." you are now a citizen of the world. This would probably freak you out, especially if you never voted for it to happen. Well that is the backdrop of the story of Olympus Union - The Past Repeated by Gary Bloom.

Now I don't usually do in depth reviews of books but in this case I'll make an exception, for I believe that at the least the attempt to look into the formation of a planetary (actually interplanetary) government to rule over all of mankind and its colonies over the solar system, is quite an interesting one. I have to warn you though, it's nowhere near the level of detail you get out f the Ender's shadow series that take you step by step through the establishment of Peter's Hegemony government on earth, it is a much more succinct deal, with a lot of holes in the chain of events leading from one place to the next and it gave me a rather hard time in piecing together what was going on in the overall scheme of things.

But I have to say that for a debut novel it was pretty good, and given that both the title and the ending imply this to be the first of a series then maybe the next ones will deal with some of the unanswered questions left hanging in the air. It has some stretches that read as an action/thriller story and others that are more of a political drama sort of thing, but once you get to balance those two in your head its quite an entertaining read and it poses some interesting questions that I sincerely hope will be answered in other books.

What do you think would happen in the transition between our multi-nation world and a single government planet?