The last time I checked, we weren't under a fascist totalitarian regime at all. And invading countries of our own free will? We're still in Iraq and Afghanistan...but those are the only two I can think of (correct me if I'm wrong
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As for the war in Iraq, saying the invasion was for oil and supplies is just about as unfounded as the claims of Weapons of Mass Destruction were - there's no denying that, under Saddam Hussein, people were tortured and killed, and he committed genocide against the Kurds.
Your post also confuses me - you criticise us for stopping one dictatorship killing its citizens, but reckon that we should do the same with another?
I'm all for intervention in Burma, however, and this situation really is getting out of hand.