People sleep and rest inside a large tent at a refugee camp in the northern Greek village of Idomeni as they wait to pass the Greek-Macedonian border on Monday, Jan. 25, 2016. More than 850,000 people, most fleeing conflict in Syria and Afghanistan, entered Greece by sea in 2015, according to the UNHCR. Already in 2016, 35,455 people have arrived despite plunging winter temperatures and days of stormy weather. (AP Photo/Giannis Papanikos)

See these photos on APImages.com