Even as they were trying to thwart America in Iraq (allowing jihadis to cross through Syria, propping up Shia militias), or perhaps precisely because they were doing so, Damascus and Tehran had been feeling vulnerable, both wondering whether they were America’s next target. After 9/11, Iran had helped the United States by sharing intelligence about al-Qaeda and the Taliban. President Khatami was hoping for a thaw in relations. Instead, in 2002, President George W. Bush lumped Iran into the “Axis of Evil” along with North Korea and Iraq.

