The sources said that the army units managed to push the terrorists away from 105km of the borderline with Jordan.
The army soldiers faced the coalition warplanes' continued flights in a show of warning while advancing against militant groups at the border with Jordan, the sources said, adding that the US army further called on the Syrian troops not to approach the defense lines of the Free Syrian Army (FSA).
The US army had announced that the Syrian forces are considered as a threat to the American bases and training camps of the US-backed militants in Southern Syria.
On May 18, the US-led coalition struck pro-Bashar al-Assad forces' position near al-Tanf in the area of an established de-confliction zone. The coalition air raids occurred near al-Tanf, where US and British special forces have been training militants near the border with Iraq and Jordan.
On June 6, the Pentagon announced the coalition conducted a new strike on pro-Syrian government forces as they entered the de-confliction zone with Russia and posed threat to its personnel. The force comprised of a tank, artillery, anti-aircraft weapons, armed technical vehicles and more than 60 soldiers. At least two Syrian servicemen were killed and more than 15 injured as a result of the coalition attack.
On June 8, the US-led coalition bombed pro-Damascus forces near al-Tanf in the area of a de-confliction zone following an alleged attack by a combat drone resulting in no coalition forces' casualties. This was the third attack by the coalition on Damascus' allies in the area. The coalition targeted a drone and several trucks carrying weapons.