In 2013, after a chemical weapons attack in Eastern Ghouta, ISIL and al-Nusra conducted separate revenge attacks, Alwiya al-Furqa, Ahrar al-Sham and the Jesus Son of Mary Battalions joined the ISIL-led attacks which were code named "Volcano of Rage", and shelled Alawite neighborhoods in Damascus, areas near the Embassy of Russia in Damascus and the Four Seasons Hotel Damascus, where UN observers were reportedly staying to investigate the chemical attack.