PEACE campaigners warned of a dangerous escalation yesterday after US officials said that military advisers would soon be sent to Syria.

President Barack Obama has reportedly ordered fewer than 50 US special forces troops to northern Syria to work with US-backed rebel forces fighting Islamic State (Isis).

While none of the Syrian war’s many factions was named, the Kurdish People’s Protection Units (YPG) control most of the region along the border with Turkey apart from an Isis-controlled stretch from the west bank of the Euphrates river to the besieged city of Aleppo.