In The Third World War by John W. Hackett, Birmingham and Minsk were traded.
The whole Warsaw Pact versus NATO scenario is now obsolete, but the nuclear scenario may not be.
https://en.wikipedia.org/wiki/The_Third_World_War:_The_Untold_Story
Note that “A coup d’etat led by Ukrainian nationalists overthrows the Soviet Politburo, consigning the Soviet Union to history.”
“We’ve always been at war with Eastasia, Winston.”...........
“In The Third World War by John W. Hackett, Birmingham and Minsk were traded.”
I read that book back in 1979. A real page-turner.