http://www.pravdareport.com/news/world/ussr/31-01-2019/142220-su_27-0/
...The incident, which was captured on video, occurred in June 2017, when NATO aircraft wanted to escort a jetliner of the Russian government on its way to Kaliningrad...
Harassing an airliner headed to Kaliningrad? No wonder they had fighters chase him back to a safe distance. Was it just a civil airliner?
That was a Russian government plane, used on their Presidential and government detail. We would do the same if foreign fighter jets without permission decided to “escort” Air Force one.