Trump’s decision to decertify the nuclear deal followed an extensive policy review to come up with a new Iran strategy. By supporting Iraq, the administration intends to contain Iran’s influence in the region. An independent Iraq today could block Iran’s access to its ally in Syria, President Bashar al-Assad, and from there to the territory in Lebanon controlled by its proxy, Hezbollah. With this larger strategic picture in mind, sacrificing the Kurds may be an acceptable price to pay—especially as they had declined to follow US advice on the referendum. There is, however, an obvious flaw in this approach.