The cease fire decision in the first Iraq War was not made by international approval. Use common sense, if you were an Arab leader living in the surrounding countries would you want Saddam Hussein (a loose cannon) to remain in power to destabilize the Middle East region?
If the United States would have exceeded what was allowed by the UN resolution agreement, the next time we went to them it would be denied.
We played it by the book.
Nevertheless, here we are again, fighting an asymmetrical war...being forced to show restraint toward the enemy.