Commentary: Turkey has put the US in a tough spot by threatening another Syria incursion

Syria’s civil war, which entered its 11th year this March, may at first look like a clear-cut case of good versus evil, in which a bloodthirsty dictator, Bashar Assad, tries to snuff out any semblance of opposition to his rule. Yet, the conflict is far more complicated than that. Far from being a game of checkers, Syria best resembles an unsolvable Rubik’s Cube, in which the different sides are rarely in alignment.

While the Syrian government has recaptured approximately two-thirds of Syrian territory with the help of its Iranian and Russian partners, the territory outside Damascus’ control is divided