A Migrant woman holds a baby, in Athens, Monday, Feb. 29, 2016, at the Victoria Square, where most newly-landed migrants head after reaching the greek capital from the Aegean Sea islands. Border restrictions further north in the Balkans have left thousands of refugees and other migrants stranded in a country that is still wracked by its own financial crisis and unable to seal its lengthy sea border with Turkey.

A girl wearing a plastic rain poncho walks as refugees and migrants wait to receive food distributed by non-governmental organization at the Greek-Macedonian border, in the northern Greek village of Idomeni, on Monday, Feb. 29, 2016. Some 7,000 migrants, including many from Syria and Iraq, are crammed into a tiny camp at the Greek border village of Idomeni, and hundreds more are arriving daily.

A migrant woman cries while holding a baby, in Athens, Monday, Feb. 29, 2016, at the Victoria Square, where most newly-landed migrants head after reaching the Greek capital from the Aegean Sea islands. Border restrictions further north in the Balkans have left thousands of refugees and other migrants stranded in a country that is still wracked by its own financial crisis and unable to seal its lengthy sea border with Turkey.

A girl of a migrant family holds her face in her palms in Athens, Monday, Feb. 29, 2016, at the Victoria Square, where most newly-landed migrants head after reaching the Greek capital from the Aegean Sea islands. Border restrictions further north in the Balkans have left thousands of refugees and other migrants stranded in a country that is still wracked by its own financial crisis and unable to seal its lengthy sea border with Turkey.

Stranded Refugees from Syria are covered with blankets while waiting to be allowed to cross the Greek-Macedonian border near the northern Greek village of Idomeni, Sunday, Feb. 28, 2016. About 5,500 migrants are braving rainy weather at a tent camp close to the border and another 500 are camped at a gas station 17 kilometers away.

A boy of a migrant family sleeps on the pavement, in Athens, Monday, Feb. 29, 2016, at the Victoria Square, where most newly-landed migrants head after reaching the Greek capital from the Aegean Sea islands. Border restrictions further north in the Balkans have left thousands of refugees and other migrants stranded in a country that is still wracked by its own financial crisis and unable to seal its lengthy sea border with Turkey.