What would happen to Soviet troops in Afghanistan during WW3?

If in the 1980s before the Soviet withdrawal, conventional war broke out between NATO and the Warsaw Pact what would happen to the Soviet Army in Afghanistan?

This is of course assuming a nuclear war doesn't occur right away.
 

Ak-84

Banned
They might take a little trip to Karachi.
As POW's sure. Attacking across into Pakistan, in some of the worst terrain on the planet under the guns of two Pakistani Corps would be suicide. With air support ineffective at high altitude and suicidal at low altitude. With PAF (and possibly US Air) attacking them.
 
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