Rebel fighters ride tanks in the Armenian Christian town of Kasab as they head towards areas of clashes with forces loyal to Syria's President Bashar al-Assad
Rebel fighters ride tanks in the Armenian Christian town of Kasab as they head towards areas of clashes with forces loyal to Syria's President Bashar al-Assad May 11, 2014. Picture taken May 11, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Smoke rises after what activists said were barrel bombs dropped by forces loyal to Syria's President Bashar al-Assad at Jabal al-Turkman in Latakia province
Smoke rises after what activists said were barrel bombs dropped by forces loyal to Syria's President Bashar al-Assad at Jabal al-Turkman in Latakia province May 11, 2014. Picture taken May 11, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Rebel fighters carry their weapons as they take positions during what they said were clashes with forces loyal to Syria's President Bashar al-Assad in the village of Tshalma near the Armenian Christian town of Kasab
Rebel fighters carry their weapons as they take positions during what they said were clashes with forces loyal to Syria's President Bashar al-Assad in the village of Tshalma near the Armenian Christian town of Kasab May 11, 2014. Picture taken May 11, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A rebel fighter fires his weapon during what rebels say is a clash with forces loyal to Syria's President Bashar al-Assad in the village of Tshalma near the Armenian Christian town of Kasab
A rebel fighter fires his weapon during what rebels say is a clash with forces loyal to Syria's President Bashar al-Assad in the village of Tshalma near the Armenian Christian town of Kasab May 11, 2014. Picture taken May 11, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Rebel fighters carry their weapons as they take positions during what they said were clashes with forces loyal to Syria's President Bashar al-Assad in the village of Tshalma near the Armenian Christian town of Kasab
Rebel fighters carry their weapons as they take positions during what they said were clashes with forces loyal to Syria's President Bashar al-Assad in the village of Tshalma near the Armenian Christian town of Kasab May 11, 2014. Picture taken May 11, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
A rebel fighter rests in the village of Tshalma near the Armenian Christian town of Kasab
A rebel fighter rests in the village of Tshalma near the Armenian Christian town of Kasab May 11, 2014. Picture taken May 11, 2014. REUTERS/Stringer (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT)
Kurdish female fighters of the Women Protection Unit (YPJ) attend military training near Qamishli city
Kurdish female fighters of the Women Protection Unit (YPJ) attend military training near Qamishli city May 11, 2014. Picture taken May 11, 2014. REUTERS/Massoud Mohammed (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY TPX IMAGES OF THE DAY)
Kurdish female fighters of the Women Protection Unit (YPJ) discuss military strategies at a training field near Qamishli city
Kurdish female fighters of the Women Protection Unit (YPJ) discuss military strategies at a training field near Qamishli city May 11, 2014. Picture taken May 11, 2014. REUTERS/Massoud Mohammed (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY)
Kurdish female fighters of the Women Protection Unit (YPJ) squat as they discuss military strategies at a training field near Qamishli city
Kurdish female fighters of the Women Protection Unit (YPJ) squat as they discuss military strategies at a training field near Qamishli city May 11, 2014. Picture taken May 11, 2014. REUTERS/Massoud Mohammed (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY)
Kurdish female fighters of the Women Protection Unit (YPJ) attend military training near Qamishli city
Kurdish female fighters of the Women Protection Unit (YPJ) attend military training near Qamishli city May 11, 2014. Picture taken May 11, 2014. REUTERS/Massoud Mohammed (SYRIA - Tags: POLITICS CIVIL UNREST CONFLICT MILITARY)