German Foreign Minister Steinmeier shakes hands as he visits Syrian children refugees inside an informal school at a Syrian refugee camp in the town of Bar Elias, in Lebanon's Bekaa valley
German Foreign Minister Frank-Walter Steinmeier (R) shakes hands as he visits Syrian children refugees inside an informal school at a Syrian refugee camp in the town of Bar Elias, in Lebanon's Bekaa valley May 30, 2014. REUTERS/Mohamed Azakir (LEBANON - Tags: POLITICS CIVIL UNREST CONFLICT SOCIETY IMMIGRATION EDUCATION)
Syrian refugees sit outside their tents at a refugee camp in the town of Bar Elias, in Lebanon's Bekaa valley
Syrian refugees sit outside their tents at a refugee camp in the town of Bar Elias, in Lebanon's Bekaa valley May 30, 2014. REUTERS/Mohamed Azakir (LEBANON - Tags: POLITICS CIVIL UNREST SOCIETY IMMIGRATION CONFLICT)
German Foreign Minister Steinmeier sits with Syrian children refugees inside an informal school at a Syrian refugee camp, in the town of Bar Elias in Lebanon's Bekaa valley
German Foreign Minister Frank-Walter Steinmeier (L) sits with Syrian children refugees inside an informal school at a Syrian refugee camp, in the town of Bar Elias in Lebanon's Bekaa valley May 30, 2014. REUTERS/Mohamed Azakir (LEBANON - Tags: POLITICS CIVIL UNREST EDUCATION CONFLICT SOCIETY IMMIGRATION)
Free Syrian Army fighters walk with their weapons in Idlib
Free Syrian Army fighters walk with their weapons in southern Idlib countryside May 29, 2014. Picture taken May 29, 2014. REUTERS/ Khalil Ashawi (SYRIA - Tags: CIVIL UNREST CONFLICT)
A boy stands on the rubble of a damaged building in Idlib
A boy stands on the rubble of a damaged building in southern Idlib countryside May 29, 2014. Picture taken May 29, 2014. REUTERS/ Khalil Ashawi (SYRIA - Tags: CIVIL UNREST CONFLICT)
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Smoke rises from what activists say was an airstrike by forces loyal to Syria's President Assad in Idlib
Smoke rises from what activists say was an airstrike by forces loyal to Syria's President Bashar al-Assad in southern Idlib countryside May 29, 2014. Picture taken May 29, 2014. REUTERS/ Khalil Ashawi (SYRIA - Tags: CIVIL UNREST CONFLICT)
Free Syrian Army fighters sit inside a house in Idlib
Free Syrian Army fighters sit inside a house in southern Idlib countryside May 29, 2014. Picture taken May 29, 2014. REUTERS/ Khalil Ashawi (SYRIA - Tags: CIVIL UNREST CONFLICT)
A Free Syrian Army fighter looks out of a building with binoculars as he stands with fellow fighters in Idlib
A Free Syrian Army fighter looks out of a building with binoculars as he stands with fellow fighters in southern Idlib countryside May 29, 2014. Picture taken May 29, 2014. REUTERS/ Khalil Ashawi (SYRIA - Tags: CIVIL UNREST CONFLICT)
A Free Syrian Army fighter looks out of a building with binoculars as he stands with fellow fighters in Idlib
A Free Syrian Army fighter looks out of a building with binoculars as he stands with fellow fighters in southern Idlib countryside May 29, 2014. Picture taken May 29, 2014. REUTERS/ Khalil Ashawi (SYRIA - Tags: CIVIL UNREST CONFLICT)