I don't know much about the said subject and find it fascinating reading from all the people who flew during the cold war....
Did the Russians change their tactics fully towards stand-off when they finally got KH-55 Kent cruise missile, of which 12 could be carried by the Tu-160 Blackjack. Range was in excess of 3000km so they could launch the missiles from still up near Norway in the Arctic circle and manage to hit targets all over Northern Europe and beyond?