Trump in December ordered a withdrawal of the 2,000 American troops in Syria, saying they had defeated Islamic State militants there, even as US-backed Syrian forces continued a final push against the group’s last outpost, according to Reuters.

But Trump has been under pressure from multiple advisers to adjust his policy to ensure the protection of Kurdish forces, who supported the fight against Islamic State and who might now be threatened by Turkey, and to serve as a bulwark against Iran’s influence.

“A small peacekeeping group of about 200 will remain in Syria for a period of time,” White House spokeswoman Sarah Sanders said in a statement.

The decision was announced after Trump spoke by phone to Turkish President Tayyip Erdogan. A White House statement said the two leaders agreed, regarding Syria, to “continue coordinating on the creation of a potential safe zone.”

A senior administration official said Trump’s decision had been in the works for some time. It was unclear how long the 200 troops would be expected to remain in the area or where exactly they would be deployed.

Leaving even a small group of US troops in Syria could pave the way for European allies to commit hundreds of troops to help set up and observe a potential safe zone in northeast Syria.

The commander of US-backed Syrian forces has called for 1,000 to 1,500 international troops to remain in the country to help fight Islamic State and expressed hope the United States, in particular, would halt plans for a total pullout.

Reporter’s code: 50101