The day after President Donald Trump launched attacks against three Iranian nuclear sites—at Fordo, Natanz, and Isfahan—his administration is claiming complete and utter success at decimating Iran’s capability to develop a nuclear bomb. Of course, those assessments are likely premature, and we don’t yet know how Iran will respond. In the meantime, I called up my partner Julia Ioffe, among the most expert foreign-policy voices in Washington, to discuss the second-order effects of the U.S. going to war, once again, in the Middle East—from the military ramifications and potential political aftershocks to perhaps the most important question of all: Why now?