At least 50 Americans have joined the mix of extremist groups in Syria, warning that some could try to mount terrorist attacks at home, US intelligence officials say.
Syrian President Bashar al-Assad has said that Israel aims to establish a terrorist-controlled area along the Golan border.
UN investigators have, for the first time, accused Syrian foreign backed militant groups of committing crimes against humanity.
Militants from the Islamic State of Iraq and the Levant (ISIL) have continued their destruction of religious sites and ultra-conservative behavior, according to a monitoring group and news reports.
The Syrian army has targeted a large and important gathering of foreign-backed militants in Aleppo and killed scores of them, al-Alam correspondent says.
Damascus says that at least seven Syrian security forces and several civilians have been wounded in a number of attacks carried out by the Israeli army from the occupied Golan Heights.
People across Syria have held massive rallies to voice their support for the country’s army which has been battling foreign-backed militants over the past three years.
It had been 20 days since Abdelkader's arrival in Turkey, after having spent more than three grueling months inside prisons run by the notorious Islamic State of Iraq and the Levant (ISIL) in Syria.
The Syrian army has intensified its operations against foreign-backed militant groups, retaking a strategic hill in Qalamoun region.
Syrian President Bashar al-Assad says US Secretary of State John Kerry's efforts to mediate peace between Israel and the Palestinians are a plot that "seeks to consecrate Israel."