[ffhhj]

> near equivalence of nuclear war

If radiation escapes it would be a "dirty bomb" equivalent event, it will speed up sanctions and nations will urge Russia to allow experts to inspect the damage.

A meltdown/explosion is possible if they damage safety systems/shielding. Still won't be seen serious as a "nuke detonation" event, but countries that receive fallout will be pissed off.

If Russia continues causing more nuclear pollution that affects it neighbors, yes, it could mean war scalation.