There are in American life few really unassailable opinions—especially when the calendar turns its depressed pages on primary season. That’s when the circular firing squad fills the air with the tang of smoke and cordite. But sometimes you can find agreement, even in primary season. Sometimes you can even find something like unanimity.

Ted Cruz has won applause in recent debates by citing what is seen as America’s last unambiguous victory. To defeat ISIS, he said, we should look to the first Gulf War. (Which ended 25 years ago today.) Cruz wants a repeat of that stormy desert operation, with its thousand-plus air attacks in 37 days —and with all its attendant destruction. “There ain’t much left” to a place after such a campaign, Cruz said with a smile.

Ohio Gov. John Kasich has likewise argued that we’d beat ISIS if we just called upon “the coalition that we had when we went to the first Gulf War.” Likewise, Donald Trump has been sure, when dismissing the Bush family legacy, to separate the calamities of the son from the victories of the father. Even Michael Dukakis, in an interview this month, praised how George H.W. Bush handled that war.

So, something that’s lauded by everyone from Cruz to Dukakis to must be an unmitigated good, right? Well, maybe not. Let’s take a look. It’s not hard to see so many of our troubles getting their start in 1991’s glowing sand.

The Gulf War—that is, the effects-laden franchise opener, and not the bloated sequel—did mark a great victory, by at least one measure.  In turning back Saddam Hussein and liberating Kuwait, the United States lost 148 soldiers in combat; the Iraqi military in the same period endured up to 22,000 casualties.  So, yes, of course: a victory. But of what kind?

The Gulf War marked the first time in the modern era that we sent our military to fight an Arab-world enemy. Think about that. What has seemed an awful but inescapable part of American foreign policy—the drawn-out struggle against one Islamic foe or another—began in that war. And our having waged that war is precisely what first inflamed the region’s zealots against us. Think about that, too. Not many remember this, but what first motivated Osama bin Laden to attack the United States? It was intolerable to an Islamist such as bin Laden that—because of the fight against Saddam—there were “infidel” American troops in Saudi Arabia, home of Islam’s two holiest sites, Mecca and Medina.