Al-Hasakah offensive (May 2015)

Western al-Hasakah offensive
Part of the Syrian Civil War, Syrian Kurdish–Islamist conflict (2013–present), and the American-led intervention in Syria
Kurdish fighters in Tell Tamer
Date 6–31 May 2015 (3 weeks and 4 days) Location Western Al-Hasakah Governorate, Syria Result Major YPG & allied forces victory Offensive operations in the Ras al-Ayn countryside expand into the Tell Abyad region on 31 May 2015 Territorial changes The YPG and allied forces capture the Tell Tamer and Ras al-Ayn countrysides, including 230 towns, villages, and farms, as well the Abd al-Aziz Mountains
Belligerents
Syrian Kurdistan Syriac Union Party Al-Sanadid Forces Air-strikes: CJTF–OIR	Islamic State of Iraq and the Levant
Commanders and leaders
Sozdar Dêrik (YPG General Command member) Commander Rûbar Qamishlo † (YPG field commander) Sharwan Sason (YPG field commander)	Abu Ali al-Anbari (Deputy, Syria)
Units involved
YPG YPJ Syriac Military Council (MFS) Sutoro Khabour Guards	Military of ISIL Wilayat Al-Barakah Khorasan Battalion
Strength
YPG & YPJ: 5,500+ Syriac Military Council (MFS): 1,500 Sutoro: 1,000+ (June 2013)	4,000+
Casualties and losses
55 killed	434–716 killed (YPG claim) 268 killed (SOHR claim)
50–120 civilians killed

Major YPG & allied forces victory

Military of ISIL

YPG & YPJ: 5,500+
Syriac Military Council (MFS): 1,500

The Western al-Hasakah offensive, dubbed Operation Commander Rûbar Qamishlo by the Kurds, was a military operation during May 2015 in the Al-Hasakah Governorate, during the Syrian Civil War, conducted by Kurdish YPG and allied forces against the Islamic State of Iraq and the Levant. On 31 May 2015, as most of the offensive operations in the western Al-Hasakah Governorate ended, the part of the offensive in the Ras al-Ayn countryside expanded into the Tell Abyad region, in the northern Raqqa Governorate.

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