In return, the Khabour Guards and Nattoreh joined the Syrian Democratic Forces, while the ADP agreed to support the PYD's federalism project for Syria.[4] Nevertheless, the party continues to advocate "the unity of Syria, as a country and people".[8] On 13 April, PYD forces officially handed over the valley's villages to the Khabour Guards and Nattoreh, though the YPG kept a military base near Tell Tamer.