“Sanctions could be an excellent reason for the final review of all relations with those states that have introduced them. Including interruption of the dialogue on strategic stability,” Medvedev wrote.

He added that in principle, it is possible “to renounce everything,” including the New START Treaty.

“Yes, and diplomatic relations, in principle, are not particularly needed. It's time to close the embassies with barn locks. And to continue contacts by examining each other only through binoculars and weapons’ optical systems,” Medvedev said.