According to reports, the incident took place over the Baltic Sea in June 2017, when the US jet attempted to follow the Russian government plane on its way to the city of Kaliningrad. The US jet was reportedly acting as a part of the NATO Baltic Air-policing mission.
The footage used in this video was first published on January 31 by a Russian military blogger, Fighterbomber. It shows how a Russian Su-27 fighter jet intercepting a US Air Force F-15C warplane.