People rally as they mark the 10th anniversary of the start of the war in Syria, on March 13, 2021 in Istanbul. More than 3.6 million Syrians refugees live in Turkey as a result of the decade-long conflict in their home country. The UN rights chief on March 11, 2021 urged Syria's warring parties to disclose the location of tens of thousands of missing people, as she marked 10 grim years since the start of the war. (Photo by Yasin AKGUL / AFP)
