one of the senior Iraqi Nuclear scientists had a long interview with Riyadh newspaper time ago
he said Iraq was few months away from building its 1st nuclear weapon when Saddam suddenly went into Kuwait. he also stated that the Coalition air forces made sure to bomb and destroy all the nuclear facilities leaving no chance for these scientists to build the bomb.
i believe that some of the intelligence agencies of the coalition states knew that Saddam didn't build it already
anyway , there are many "what ifs" about this war (which i prefer to call it 2nd Gulf war not the 1st one) ..
the Prince of Kuwait was warned by the USA ,before the invasion, through satellite photographs that the Iraqi armed forces are massing on his borders in a way that made them believe he might invade Kuwait but he didn't believe that such thing would happen .. he commit a mistake by not telling KSA about this , the thing which King Fahad argued with Shaikh Jabir later after the invasion occured
what if Prince Jabir told KSA about the Iraqi massing forces on his boarders and KSA responded by setting up defense lines in Kuwait and issue hard warning for Saddam ? that would deter Iraq from rushing into invading Kuwait and taking it over in a day
anyway , what happened is far more complicated , and there are other Arab regimes that had hostile anti-Saudi activities during that crisis (like Sudan which hosted Iraqi SCUD's on its soil , Hashemite Jordan which stabbed Saudi Arabia in the back by rejecting to support military strikes on Iraq , Yemen which had always dreamed of invading Jizan and Najran in the south of Saudi Arabia , and the Palestinian authority that didn't condemn the invasion of Kuwait)