Syrian permanent representative to the United Nations Bashar Jaafari (front) addresses a Security Council meeting on the situation in Syria, at the UN headquarters in New York, Feb. 28, 2020. United Nations Secretary-General Antonio Guterres on Friday warned that the Syrian conflict has changed in its nature, calling on parties concerned to heed the risk that the military escalation in northwest Syria might run out of control. (Xinhua/Li Muzi)
