Trump’s nice Kurds just cut the water supply to Aleppo about 8 hrs ago. The moderate FSA had cut the electricity prior...
Legitimate tactics in siege. Surrender or suffer. And if you don’t surrender, and the city is taken by storm, everyone inside can be put to the sword.
That said, we need to get the heck out of there. There are NO good guys in Syria, except maybe the Christians and Yezidees. And maybe the Kurds. And there are not enough of them to make a difference.