TOPSHOT - Fully-veiled women and children queue at a screening point as hundreds of civilians, who streamed out of the Islamic State group's last Syrian stronghold, arrive in an area run by US-backed Syrian Democratic Forces outside Baghouz in the eastern Syrian Deir Ezzor province on March 5, 2019. - Shell-shocked and dishevelled, hundreds of women and children stumbled through eastern Syria's windswept desert carrying what little they could after fleeing the IS group's final speck of territory. (Photo by Delil SOULEIMAN / AFP)        (Photo credit should read DELIL SOULEIMAN/AFP/Getty Images)
50 days. How the caliphate fell, and what's next for ISIS
03:40 - Source: CNN
Eastern Syria CNN  — 

ISIS has lost its final stronghold in Syria, the Syrian Democratic Forces announced Saturday, bringing an end to the so-called caliphate declared by the terrorist group in 2014.

The coalition of Kurdish and Arab soldiers backed by US, British and French special forces said it defeated ISIS and fully liberated Baghouz in eastern Syria.

“Syrian Democratic Forces declare total elimination of so-called caliphate and 100% territorial defeat of ISIS. On this unique day, we commemorate thousands of martyrs whose efforts made the victory possible,” tweeted Mustafa Bali, head of the SDF press office.

In a paper statement issued at a formal ceremony to mark ISIS’ defeat, the SDF said it had lost 11,000 “forces, leaders and fighters” battling the militant group. But it vowed to continue the fight against any elements of ISIS sleeper cells, which “still pose a great danger on our region and the whole world.”

Ending weeks of combat, the US-backed Syrian forces raised a yellow flag atop a building in the town as they celebrated the victory over ISIS.

The SDF flag flutters atop a building in Baghouz.

At its peak, ISIS controlled a huge stretch of territory stretching from western Syria to the outskirts of the Iraqi capital of Baghdad. But the final battle took place in the past several weeks around the small and otherwise unremarkable Syrian town of Baghouz, on the banks of the Euphrates River.

The SDF launched the last assault on the ISIS enclave in early February.

For weeks, US-led coalition airstrikes had pummeled parts of the town while fighters from the Syrian Democratic Forces (SDF) pushed forward on the ground.

The final battle played out on a hillside near Baghouz. On Saturday morning, inside what was the group’s final enclave, all that remained was a junkyard of wrecked cars, tattered tents, ditches and dead bodies.

The victory has been hailed by British Prime Minister Theresa May, French President Emmanuel Macron and other members of the global coalition fighting ISIS.

“We must not lose sight of the threat Daesh [ISIS] poses,” May said, adding that her government “remains committed to eradicating their poisonous ideology.”

Before the offensive started, SDF officials estimated that 1,500 civilians and 500 ISIS fighters remained, but as the assault got under way it became clear that the actual number was much higher. The final phase of the battle was delayed to allow thousands more civilians – along with foreign ISIS supporters – out of of the besieged town.

The militants who mounted the last stand in Baghouz included some of the most battle-hardened and experienced personnel remaining in ISIS, and the wi