I'm missing something here, obviously.

Uprisings by their very nature are by the citizens, no? Where does another nation come in? Even the USA from its supremely unselfish and altruistic motives.

No, I don't like Hussein. But for the sake of argument, let's postulate the unlikely notion that Bush is not too popular a figure in Europe. Let's say further that he and his administration alarm a great many governments and peoples in the world, that some consider him a menace. So- if some other citizens of some other country decide that he has to go, do we agree that they have the right, nay, even the obligation to do that?

Until and unless the people of a nation have had their fill of their own government, they're not going to rise up against it. And unless and until they do, no one else is going to accomplish it for them. Sure, assassination from the outside is possible but the people in all likelihood will not be friendly toward their liberators nor without extensive outside control will the country have learned anything about freedom. My opinion.