A migrant collapses from heat while waiting to cross Greece's border with Macedonia, near the village...
A migrant collapses from heat while waiting to cross Greece's border with Macedonia, near the village of Idomeni, September 2, 2015. Migrants are trekking from the southern Macedonian border with Greece, near Gevgelija, to the northern border with Serbia on their way to Western Europe. REUTERS/Alexandros Avramidis