Iraq kills ex-President Bush in 1993

It would be War.

But what about this, according to wiki: In October, 1993, New Yorker investigative journalist Seymour Hersh assailed the U.S. government’s case as "seriously flawed', noting that seven bomb experts had told him that the devices were mass-produced and probably not even manufactured in Iraq.

So what happens when it is latter discovered the Iraqis where not behind the death of the former president but a terrorist organization was.

That was the same thing i was thinking.

  Pretty much the same way as OTL.  Nutters and pacifists are pretty much as impenetrability to common sense as their equivalents on the right and devoid of reason.  Plus in this case there would actually be a valid political reason fro invading, rather than finishing off the job George junior didn't complete.  It will still save a lot of civilian lives by getting rid of a murderous regime - presuming you don't blame the west for what local nutters do afterwards.  Which if there is more sensible western leadership you might just avoid although I fear its still going to be difficult.  From the British point of view we will hopefully avoid the mess of the phony dossier, although that could possibly leave Blair with a better reputation than he deserves.  [But then Thatcher, Major and Cameron all escaped their just rewards so I suppose there's a kind of shared [in]justice there.

And maybe a little less problem as we have seen the past few years.

And in Syria a father is holding power, so i doubt there will be problem there.

That will not make the Turks happy.