Children play in a cardboard box at a makeshift camp for migrants and refugees near the village of Idomeni not far from the Greek-Macedonian border on April 28, 2016.Some 54,000 people, many of them fleeing the war in Syria, have been stranded on Greek territory since the closure of the migrant route through the Balkans in February. / AFP PHOTO / TOBIAS SCHWARZ 4638#Agencia AFP