How the dream of Middle Eastern security integration was shattered overnight

Over the last three years and across two presidential administrations, the U.S. has pursued a vision of tying the Israel Defense Forces and the armies of neighboring Arab nations in a revolutionary Middle East security architecture. This groundbreaking partnership would detect and counteract shared threats, primarily those from Iran. That vision was shattered on Saturday with Hamas' stunning coordinated attack on Israel. This weekend's attack is the region's 9/11. It will reshape the Middle East security architecture for decades. But it wasn't just the ferocity of the attack that sounded alarm bells. Immediately following the attack, a chorus of regional…