An attack on the rebel-held town of Khan Sheikhun in April 2017 killed dozens of people

Syrian government control

Isis

Kurdish

Rebel

Mixed

Turkey

Aleppo

Raqqa

Idlib

Khan Sheikhun

Syria

Homs

Palmyra

Lebanon

Damascus

Iraq

Jordan

100 km

100 miles

Syrian government control

Isis

Kurdish

Rebel

Mixed

Turkey

Aleppo

Raqqa

Idlib

Khan Sheikhun

Syria

Homs

Palmyra

Lebanon

Damascus

Iraq

Jordan

100 km

100 miles