U.S.-backed Forces Claim Strategic Move Toward Liberating De Facto ISIS Capital in Syria

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Syrian Democratic Forces fighters hold up their weapons in the north of Raqqa city, Syria February 3, 2017.
Syrian Democratic Forces fighters hold up their weapons in the north of Raqqa city, Syria February 3, 2017.Credit: Rodi Said/REUTERS

U.S.-backed Syrian militias cut the last main road out of Islamic State-held Raqqa on Monday, severing the highway between the group's de facto capital and its stronghold of Deir al-Zor province, a militia spokesman said.

The development, confirmed by a British-based organisation that monitors Syria's war, marks a major blow against the Islamic State that is under intense military pressure in both Syria and Iraq.

It is losing ground to three separate campaigns in northern Syria by the U.S.-backed Syrian Democratic Forces militias, the Russian-backed Syrian army, and Turkey and allied Syrian rebels.

"Cutting the road between Raqqa and Deir al-Zor means that practically the encirclement of the Daesh [Islamic State] capital is complete by land," a Kurdish military source told Reuters, adding that the only remaining way out of the city was south across the Euphrates River.

"It is a big victory but there is still a lot to accomplish," the source said, speaking on condition of anonymity.

The SDF is an alliance of militias including the Kurdish YPG and Arab groups. It launched a multi-phased campaign in November to encircle and ultimately capture the Islamic State's base of operations in Raqqa city, with air strikes and special forces support from a U.S.-led coalition.

Further west, the Syrian army has made its own, rapid progress against Islamic State in the last few weeks, advancing east from Aleppo city towards the Euphrates.

A Syrian military source told Reuters the army would press on to reach the jihadists' main strongholds in Raqqa and Deir al-Zor.

Islamic State still controls swathes of Syria, including much of the center and nearly all the eastern province of Deir al-Zor stretching all the way to the Iraqi part of its self-declared "caliphate."

The SDF has been the main U.S. partner against ISIS in Syria. "The road is under the control of the SDF," spokesman Talal Silo said in a voice message sent to Reuters. "The road between Raqqa and Deir al-Zor."

There was no immediate word from the militant group on the social media channels it uses to communicate news.

Air strikes by the U.S.-led coalition have destroyed the bridges across the Euphrates to Raqqa city, the British-based monitoring group, the Syrian Observatory for Human Rights, said.

The Observatory said families brought recently by the Islamic State to Raqqa from areas to the west had been forced to cross the river by boat, reflecting the problem facing ISIS in reaching the city.

Syrian army also eyes Raqqa

The Syrian army's advance from the west has added to the pressure on the Islamic State.

One of the targets of the army's advance appears to be to secure the water supply to Aleppo, which is pumped from the village of al-Khafsa on the western bank of the Euphrates.

The Observatory said on Monday the army had advanced to within 8 km (5 miles) of al-Khafsa.

The Syrian army push has also had the effect of deterring further advances south by Turkish forces and their Free Syrian Army rebels as they carve out an effective buffer zone near the border in areas seized from the Islamic State.

"The army will not stop in its military operations against Daesh, and will certainly reach its most important strongholds in Raqqa and Deir al-Zor. This is a national Syrian decision," the Syrian military source told Reuters. The source said the army was advancing at a "rapid pace," and there was "great dysfunction" in the Islamic State's leadership.

Turkey, a NATO member, wants its Syrian rebel allies to lead the Raqqa offensive, and U.S. support for the YPG is a major point of contention between the two states.

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