People walk among tents during foggy a morning at a makeshift camp at the Greek-Macedonian border near the Greek village of Idomeni where thousands of refugees and migrants are stranded on March 8, 2016.  European Union leaders on March 7 hailed a "breakthrough" in talks with Turkey on a deal to curb the migrant crisis but delayed a decision until a summit next week to flesh out the details of Ankara's new demands. More than one million refugees and migrants have arrived in Europe since the start of 2015 -- the majority fleeing the war in Syria -- with nearly 4,000 dying while crossing the Mediterranean. / AFP / DIMITAR DILKOFF