what's to stop this from happening?

So, Saddam Hussein is dead - or so it would seem.

Forget about the fact that this deceased human being had brought upon his own neighbors and nation a dreaded fear and system that should anyone even try to think of opposing him that he would not live the night to see the next day.

Forget about the fact that this man had done many monstrousties in his time that he was considered a madman of his time. A madman that many were lead to believe would free the Arab world of the western grasp on the Middle Eastern region by terrorizing 'Israel' with a few long range missiles that the UN was convinced by both the UK and the US certain satellite images that Iraq had a hold of Weapons of Mass Disillusion to wage a war on 'terror' before it struck a homeland attack.

Forget about the fact that Saddam was left to hang before the Sun even rose on the first day of Eid - a day of which Muslims all over the world celebrate forgiveness and tolerance towards another.

Forget about the fact that the entire trial that was attending to Saddam's long list of crimes was a complete joke since the world knows that you cannot trial a former president by people who actually hold a grudge against the very same person, nor can you condemn the man to death by whichever way you look at it because as per international laws, the maximum penalty you can condemn a guilty man of a former powerful and authoritative position is life imprisonment in some lonely island (i.e.: Nelson Mandela).

If this whole track of incidents shows anything, it shows just how weak the entire Arabic political system is in the face of any western intervention - whichever country it may be - into meddling with internal affairs of any Arab countries such as the preparation that is being scheduled against Iran in the Gulf waters as we speak.

It shows that any system that does not abide by the west's desires is sure to get the very same result that the former Saddam regime got. What's to stop anyone from outside to come into our country and cripple us to our knees just as what happened to Iraq?

What's to stop it, exactly?