Sometime before April, the Russian government plans to briefly disconnect the entire country from the internet.
https://futurism.com/russia-internet-security-test
This is a defensive approach, a response to any potential cyber attack. But it could be used for the opposite reason, now that the switch is in place.
They are already close to being on their own: The Russian government announced in 2017 that it would handle up to 95 percent of all internet traffic locally — that is, independent from the rest of the world — by 2020.