Invasion of the Soviet Union... seeing how the U.S.S.R. is gone, and has been for years...
A continental rift would form at the convergent boundary.
But this would NEVER realistically happen as far as I know. The closest thing to this would be an aulocogen which is a failed rift
The affect the cities they are around because the brung the economy down, they don’t have much money or much of anything so they have to constantly take out loans and such