The first Turkish troops have crossed into northeastern Syria in preparation for a full-scale offensive to force back Kurdish militants controlling the border area, a Turkish official said, days after President Donald Trump said the U.S. wouldn’t stand in the way.

According to Bloomberg, a small forward group of Turkish forces entered Syria early Wednesday at two points along the frontier, close to the Syrian towns of Tal Abyad and Ras al-Ayn, said the official, who spoke on condition of anonymity.

source bloomberg.com