Russia is now fighting in Syria.
On Wednesday, the Russian parliament gave President Vladimir Putin authorization to use military force in Syria "on the basis of universal principles and norms of international law."
Russia has already been building up forces in Syria over the past few weeks. (Video via YouTube / Кристина Волкова)
The goal being to both prop up the embattled regime of Syrian President Bashar al-Assad and fight terrorist groups like ISIS.
President Putin spoke in front of the United Nations on Monday, calling for cooperation with Assad's regime against ISIS.
This video includes music from Chris Zabriskie / CC BY 4.0.