Russia, as well as the United States, France, and Britain, are all launching air strikes against ISIS (also known as ISIL, Islamic State, and Daesh) in Syria and are targeting oil trucks and fields to hamper the terrorist group's main means of funding.
Business Insider: Video footage of the alleged aftermath of Russia bombing some Syrian oil trucks just emerged
This handout picture obtained from the Russian Defence Ministry's official Facebook page on November 26, 2015 shows Russia's S-400 air defence missile systems at the Hmeimim airbase in the Syrian province of Latakia.