Powerful Kurdish Democratic Union militia on Sunday has mourned 4 members killed by the Islamic State in the eastern provinces of Hasaka and Raqqa, activist told Ammar Johmani.
YPG, the armed wing of PYD, is a key group in the U.S.-led Syrian Democratic Forces where hundreds of fighters have been killed since last November when first phase of war on ISIS began.
In Tel Abyad town north of Raqqa city, the PYD supporters buried 16 YPG fighters killed by ISIS on Saturday.
The daily casualties pushed The PYD for forced conscription through severe arrest campaign.
A new batch of militants was graduated by PYD this week to join fight against ISIS.
Meanwhile, U.S.-led coalition has stepped up its aerial campaign on Raqqa city in support of SDF days before launching major offensive to expel ISIS from the de facto capital of the caliphate.
Local monitoring group, Raqaa Is being Slaughtered Silently said coalition warplanes have also dropped leaflets demanding civilians ti fleed the icty, such a demand means the inventible death, military source told Ammar Johmani.
The U.S.-backed Syrian Democratic Forces militias are just two miles far from the first neighborhoods of Raqqa from the eastern side; such an advance followed a promise on Thursday that no harm would come to ISIS fighters in Raqqa who turned themselves in by the end of the month.
More than 470,000 people have been killed and millions more displaced since Syria's conflict broke out in March 2011
