Turkish Invasion Threat Escalates Syrian Conflict
http://www.wsws.org/en/articles/2016/01/22/syri-j22.html
"The Syrian government has formally appealed to the United Nations over incursions into its territory by Turkish troops. The protest at the UN comes amid reports that Turkish soldiers have crossed the border and entered the Syrian town of Jarabulus on the western bank of the Euphrates river.
Turkish military actions inside Syria threatens to escalate the internal conflict in that country and increase the threat of a confrontation between Turkey and Russia.
The primary Turkish interest in Syria has been to block the consolidation of an autonomous Kurdish region on Turkey's southern border. The government in Ankara has declared that any attempt by the YPG to cross to the western bank of the Euphrates and link up the two Kurdish cantons of Kobane and Afrin would be a 'red line' that would trigger Turkish military intervention.
ISIS fighters have reportedly offered no resistance to the Turkish incursions, underscoring the barely concealed collaboration between the Islamists and the [NATO] Turkish state..."