The long-anticipated agreement closes a period of intense uncertainty in northeastern Syria after rebel forces led by Ahmed al-Sharaa, who is now the president, seized power in December 2024.
U.S. and European officials say they have put three demands in front of the Iranians, including a permanent end to all enrichment of uranium.
Iran and its militia allies say they will respond aggressively in the region if attacked. A U.S. aircraft carrier and warships are approaching the region.
Syria’s government and Kurdish-led forces in the country’s northeast have clashed as President Ahmed al-Sharaa seeks to extend his authority across the entire country.
The bloody crackdown offers hints about growing tensions inside the country’s ruling system as the cleric’s rule comes under strain.
The U.S. military said it had transferred 150 Islamic State detainees from northeastern Syria to Iraq and could eventually move as many as 7,000, as the Syrian government assumes control of the region from Kurdish-led forces.
A Kurdish force that helped defeat the Islamic State is collapsing as the Trump administration turns to back the new Syrian government.
The U.S. envoy to Syria said Washington was confident the Syrian government could take over the country’s fight against the Islamic State terrorist group.
New tensions flared a day after a Kurdish-led militia agreed to hand over control of prisons holding some 8,000 Islamic State fighters to the Syrian government.
The new deal also calls for a cease-fire. Government forces have taken strategic assets from the militia in recent days, weakening the force.