These situations are too complex to just view them as "democracy = good, tyranny = bad". I firmly believe this is a true statement, but the unchangeable fact of the matter is that attempting to resolve tyranny can lead to more harm than good.

There's a reason the cold war was a, well, "cold" war; the consequences of resolving it would have caused far greater harm. This is also the reason NATO is careful to avoid too much direct involvement right now.

So in short, also insert something about the road to hell being paved with good intentions.