Supporters of Syria's armed opposition were shaken over the weekend by the latest atrocity by members of the Al-Qaeda splinter group ISIS, whose militants conducted the horrific public beheading of an Islamist rebel figure known for his military prowess.
The news came as the Islamic Front, to which the slain fighter belonged, and four large Islamist militias issued a "code of honor" governing their tactics and strategy, urging all other rebel groups to endorse the document.
Pro-opposition media said that ISIS militants Friday intercepted Muthana Hussein, a native of Idlib province and senior commander with the Ahrar al-Sham militia, one of the Islamic Front's seven members.
Reportedly responsible for destroying some 15 regime tanks during the course of the war with weapons such as Konkurs missiles, Hussein was intercepted by ISIS fighters in rural Hama, on his way back to Idlib from Qalamoun.
The Islamic Front and other Islamist militias, along with the rebel Free Syrian Army, have been fighting ISIS militants throughout Syria since the beginning of the year, sparking clashes and violence that has killed over 6,000 people, according to the Britain-based Syrian Observatory for Human Rights.
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