“The de-escalation zones, agreed by Turkey, Russia”
Why is Syria not mentioned?
This is about Erdogan punishing, killing and blocking the Kurds in their attempt to carve out a territory for Kurdistan, Turkey's campaign against ISIS is secondary even tough it is cited as the reason.
The US will do nothing to interfere with this activity.
Russia is also sending a message to the Kurds regarding cozying up to SDF, the Turks will exact a price as proxy, and there will be no cover for the Kurds.
Syria was left out by the US, and the message is because of that, this is what the Kurds get.