One hope for Yemenis is that the international fallout from the death of the Saudi dissident, Jamal Khashoggi, which has damaged Prince Mohammed’s international standing, might force him to relent in his unyielding prosecution of the war. Peter Salisbury, a Yemen specialist at Chatham House, said that was unlikely. “I think the Saudis have learned what they can get away with in Yemen — that western tolerance for pretty bad behavior is quite high,” he said. “If the Khashoggi murder tells us anything, it’s just how reluctant people are to rein the Saudis in.”