Given the uprisings in the Arab world this year that have toppled authoritarian rulers from Tunisia to Egypt to Libya, it's tempting to speculate whether the Iraqi people might have overthrown Saddam Hussein on their own, without involving any American forces. Such questions can never be answered, of course, and the outcome of those revolutions is still far from certain. But it's indisputable that today's Middle East is a vastly different place from what it was at the time of the 2003 invasion. Whether it is better or worse, history will have to judge. For now, we can only rejoice in the safe return of our troops this Christmas season and offer our prayers for a brighter future for the people of Iraq.