This report in WSJ shows how the situation in Syria changed since 2011. The Kurds are spread out over several states formed as the British and French empires in the Middle East collapsed, leaving an ethnic group of 30 million people spread out over Iran, Iraq, Syria and Turkey.
A Kurdish zone was set up in northern Syria after the collapse of ISIS in operations by the U.S. and the Kurds in 2016-2018. A border area was taken by Turkey in the recent push by Turkish forces into border areas bordering Turkey, with the withdrawal of U.S. forces and Mr. Trump placing sanctions on Turkey. The incursion ended in a week after Russia agreed to broker a deal and the Kurdish forces left the border with Turkey. Turkey has Kurdish people in the southeast of the country who participate in elections and are Turkish citizens, and Iraq has an autonomous region run by the Kurds.
Original article 5 minutes, gist 1 minute