Middle East policy expert Trita Parsi says President Biden’s reluctance to press Israel for a ceasefire in Gaza has the potential to drag the U.S. into a war with Iran and its allies in the region. On Monday, Israel reportedly killed a Hezbollah commander in southern Lebanon, just days after an airstrike killed a senior Hamas leader in the capital Beirut. Meanwhile, the U.S. has exchanged fire with Yemen’s Houthi forces, who have attacked commercial ships in the Red Sea to pressure Israel to stop its war. “The Biden administration clearly do not want an escalation,” says Parsi, the executive vice president of the Quincy Institute for Responsible Statecraft. But the longer Israel’s war on Gaza continues with full U.S. support, the less likely regional actors are to continue showing restraint, he says. “This is not going to work in the long run.”