With Putin’s partial withdrawal from Syria of course, there is going to be a jocking for power for this region. Assad has already thoroughly proven he cannot keep control of his people by his own might and skill. Erdogan makes no bones about wanting to be the caliph and have a united Ottoman Empire again.
Here’s is a second link with more information on the same subject, make sure you read both articles, they connect. https://www.almasdarnews.com/article/turkish-army-accused-forced-recruitment-syrians/Updated Jan 1, 2018, 8:09 AM