The YPG has signed a ceasefire with the Marea Operation Room. The Marea Operation Room are a coalition of Free Syrian Army brigades and Islamist groups, including Al-Nusra Front and Ahrar ash-Sham.
Jaish al-Thuwar and the Syrian Democratic Forces, allied with the YPG, have refused to sign the truce. They say they will not stop attacking the Marea Operation Room till several villages are handed to them.
How Jaish al-Thuwar and the Syrian Democratic Forces react to the YPG signing the ceasefire is not yet known.