The Syrian Civil War began in 2011 amid the Arab Spring protests against President Bashar al-Assad's authoritarian rule. As protests spread across Syria and demands for Assad's resignation grew, the conflict escalated and various armed opposition groups formed against Assad's government. Over time, the war grew increasingly complex as more foreign nations and militant groups intervened on both sides. Millions of Syrians have been displaced by the ongoing civil war and human rights violations have been committed by all sides in the prolonged conflict.