BEIRUT -- The Islamic State militant group was defeated in its last major stronghold in Syria by pro-government forces, state media and a monitoring group reported Sunday, leaving the militants to defend just strips of desert territory in the country and a besieged pocket outside the capital, Damascus.
Also Sunday, more than two dozen civilians were killed as government forces and rebels traded fire across fronts in Damascus and Homs, Syria's third-largest city.
The intensified violence is testing an accord by Russia, Turkey, and Iran to suppress fighting in Syria ahead of the resumption of political talks in Geneva between the government and opposition, set for Nov. 28.
Eight civilians were killed in rebel shelling on Homs, which also put the city's al-Walid flour mill out of service, the Syrian Arab News Agency reported. It added that another two were killed by shelling or rocket fire on Damascus.
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At least 17 civilians were killed in government shelling and airstrikes on the Eastern Ghouta suburbs of Damascus, which remain under opposition control, according to the Britain-based Syrian Observatory for Human Rights monitoring group. The Civil Defense search-and-rescue group, more popularly known as the White Helmets, said one of its volunteers was killed by a rocket.
Residents in the Ghouta region have suffered under an immense government bombardment since rebels tried to storm a military position nearby Tuesday. At least 77 civilians have been killed, according to the Observatory.
The battle with the Islamic State for Boukamal, on the border with Iraq, featured its share of feints and ruses, with the militants pulling out of the town only to attack it again and threaten to trap pro-government forces inside.
But the militants could not hold it against a coalition of regional forces from Lebanon to Pakistan, organized under Iran's leadership to fight the war in Syria. A statement by a shared media outlet for the forces said Iranian Revolutionary Guards Gen. Qasem Soleimani personally directed the operations, and it published a video of him posing for photos with fighters celebrating the victory.
Holding Boukamal will be an important strategic objective for the Syrian government and its sponsor Iran, which is shifting militias under its authority across both sides of the border.
Pro-government forces were combing the town for booby traps, the Syrian Arab News Agency reported.
Units from Lebanon's militant group Hezbollah, Iraq's Popular Mobilization Forces militias, Iran's elite Revolutionary Guards, and the Syrian army all fought in the battle for Boukamal, according to various statements and interviews with the groups and the Syrian Observatory for Human Rights, which also reported the militants' defeat at Boukamal.
Iranian Brig. Gen. Khayrallah Samadi was killed by a mortar shell, Iran's semi-official Fars News Agency reported Saturday.
The Islamic State has suffered a series of defeats at the hands of separate but simultaneous offensives in Iraq and Syria by the Russian-backed Syrian forces and allied militias as well as U.S.-backed Iraqi and Syrian fighters.
Despite its recent defeats, the extremist group's media apparatus has remained active, and its fighters are likely to keep up their insurgency from desert areas.
Information for this article was contributed by Albert Aji of The Associated Press.
A Section on 11/20/2017