How chemical weapons have helped bring Assad close to victory

Shelling in Homs, Syria Smoke drifts into the sky from buildings and houses hit by shelling in Homs town. 09June 2012

After seven devastating years of civil war in Syria, which have left more than 350,000 people dead, President Bashar al-Assad appears close to victory against the forces trying to overthrow him.

So how has Mr Assad got so close to winning this bloody, brutal war?

A joint investigation by BBC Panorama and BBC Arabic shows for the first time the extent to which chemical weapons have been crucial to his war-winning strategy.

View a map of the 106 chemical attacks that have taken place since 2014 and learn more about the use of chemical weapons by the Assad regime in BBC’s article.