Dozens of Islamist Saudi Arabian clerics have called on Arab and Muslim countries to "give all moral, material, political and military" support to what they term a jihad, or holy war, against Syria's government and its Iranian and Russian backers. Although the clerics who signed the online statement are not affiliated with the government, their strong sectarian and anti-Christian language reflects mounting anger among many Saudis over Russian and Iranian involvement in Syria's civil war. Russia last week started airstrikes against Syrian opposition targets that it describes as aimed at weakening the jihadist Islamic State group, a move Riyadh has...
