The combination of US warplanes in the sky and Kurdish fighters on the ground proved decisive.
British airstrikes aided the royalists and the United States offered warplanes in a symbolic show of force.
Antigovernment activists reported airstrikes by government warplanes in the Damascus suburbs and near the northern city of Aleppo.
Activists say the blasts were the result of regime missiles, with some reporting warplanes in the area.
By contrast, Iraqi attacks on allied warplanes in the northern no-flight zone are lagging behind last year's totals.
German public opinion, with its pacifist tendencies, has been shocked to see Russian tanks and warplanes in action.
Groups that track the violence reported widespread attacks, including the government use of warplanes, in Damascus suburbs and other areas on Friday.
Outside, there was a 21-gun salute and a flypast of warplanes in a "missing man formation", used to salute a fallen pilot.
A leading Yemeni journalist has been killed in an air strike by Saudi-led coalition warplanes in the country's rebel-held capital Sana'a.
Even so, the episodes illustrate the chance of unintended hostilities arising from encounters between remotely piloted surveillance craft and Iranian warplanes in the heavily militarized Persian Gulf.
Air strikes by US warplanes in combination with attacks by Iraqi and Kurdish troops had showed Isis was "vulnerable to coordinated and effective military action", he said.
