Following the U.S. killing of Qasem Soleimani, head of the Islamic Revolutionary Guard Corps-Quds Force (IRGC-QF), the United States and Iran are involved in an escalating conflict. What is badly needed now is a coherent long-term U.S. strategy to deal with Iran in ways that protect U.S. national security and leverage U.S. partners. The United States' "maximum pressure" campaign has not led to a change in Iran's behavior--at least not yet--though...