Free Syrian Army fighters carry mortar shells before launching them towards forces loyal to Syria's President Bashar al-Assad that are camped in the Valley of Al-Dayf and Al-hamdeh, in Idlib
Free Syrian Army fighters carry mortar shells before launching them towards forces loyal to Syria's President Bashar al-Assad that are camped in the Valley of Al-Dayf and Al-hamdeh, in Idlib January 11, 2014. REUTERS/Fadi Mashan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A Free Syrian Army fighter pulls a rope to launch a mortar towards forces loyal to Syria's President Bashar al-Assad that are camped in the Valley of Al-Dayf and Al-hamdeh, in Idlib
A Free Syrian Army fighter pulls a rope to launch a mortar towards forces loyal to Syria's President Bashar al-Assad that are camped in the Valley of Al-Dayf and Al-hamdeh, in Idlib January 11, 2014. REUTERS/Fadi Mashan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A Free Syrian Army fighter runs after launching a mortar towards forces loyal to Syria's President Bashar al-Assad that are camped in the Valley of Al-Dayf and Al-hamdeh, in Idlib
A Free Syrian Army fighter runs after launching a mortar towards forces loyal to Syria's President Bashar al-Assad that are camped in the Valley of Al-Dayf and Al-hamdeh, in Idlib January 11, 2014. REUTERS/Fadi Mashan (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A Free Syrian Army fighter takes position in a damaged house in the Aghyol area of Aleppo
A Free Syrian Army fighter takes position in a damaged house in the Aghyol area of Aleppo January 11, 2014. REUTERS/Jalal Alhalabi (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A Free Syrian Amy fighter looks out a window towards a graveyard in the Aghyol area of Aleppo
A Free Syrian Amy fighter looks out a window towards a graveyard in the Aghyol area of Aleppo January 11, 2014. REUTERS/Jalal Alhalabi (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Damage is pictured after what activists said was shelling from forces loyal to Syria's President Bashar Al-Assad in Eastern Ghouta
Damage is pictured after what activists said was shelling from forces loyal to Syria's President Bashar Al-Assad in Eastern Ghouta, outside Damascus January 11, 2014. REUTERS/Diaa Al-Din (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Residents clean up after what activists said was shelling from forces loyal to Syria's President Bashar Al-Assad in Eastern Ghouta
Residents clean up after what activists said was shelling from forces loyal to Syria's President Bashar Al-Assad in Eastern Ghouta, outside Damascus January 11, 2014. REUTERS/Diaa Al-Din (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A Free Syrian Amy fighter stands in a damaged house in the Aghyol area of Aleppo
A Free Syrian Amy fighter stands in a damaged house in the Aghyol area of Aleppo January 11, 2014. REUTERS/Jalal Alhalabi (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Residents remove debris after what activists said was shelling from forces loyal to Syria's President Bashar Al-Assad in Eastern Ghouta
Residents remove debris after what activists said was shelling from forces loyal to Syria's President Bashar Al-Assad in Eastern Ghouta, outside Damascus January 11, 2014. REUTERS/Diaa Al-Din (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Residents look through debris after what activists said was shelling from forces loyal to Syria's President Bashar Al-Assad in Eastern Ghouta, outside Damascus
Residents look through debris after what activists said was shelling from forces loyal to Syria's President Bashar Al-Assad in Eastern Ghouta, outside Damascus January 11, 2014. REUTERS/Diaa Al-Din (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)