On Thursday, the Syrian army backed by the Russian military aircraft operating in Syria regained control over Palmyra.
After the defeat in Palmyra, Daesh set gas fields on fire.
Daesh first captured Palmyra in May 2015. In the ten months that followed, the brutal group, notorious for destroying cultural heritage sites, leveled the Temple of Bel, the Temple of Baalshamin, the Monumental Arch and several tomb towers. Some of the priceless artifacts on display at a local museum were smashed or defaced.
The Syrian Arab Army, assisted by Russian warplanes and its allies took Palmyra under control on March 27, 2016, but lost it on December 11. Daesh then destroyed a tetrapylon and part of a Roman theater in the ancient city, using it to carry out mass executions.