The US is reportedly building a new military base in the Kurdish-majority city of Kobani, right on the Turkish border.
The US has been backing the Kurdish SDF for years, to the chagrin of Turkey and its allies in the self-proclaimed Syrian National Army (SNA). In recent weeks, intense fighting has erupted between the SDF and Turkey and their partners in SNA.
So far, the fighting has centered around the city of Manbij, which is further west than Kobani but also along the Syria-Turkey border.