Redlines and the Problems of Intervention in Syria

The civil war in Syria, one of the few lasting legacies of the Arab Spring, has been under way for more than two years. There has been substantial outside intervention in the war. The Iranians in particular, and the Russians to a lesser extent, have supported the Alawites under Bashar al Assad. The Saudis and some of the Gulf States have supported the Sunni insurgents in various ways. The Americans, Europeans and Israelis, however, have for the most part avoided involvement.