<<No mention of why the Soviets invaded Afghanistan. Sounds like Cole started his recounting at mid-season. >>
Best of my recollection is that an intelligent, modernizing Communist government took power in Afghanistan, whether by democratic election or otherwise I don't recall, and this government ran into opposition from religious, ultra-conservative fanatics who opposed modernization and change. The Afghan government then called in the Red Army to liquidate the anti-government, anti-socialist fanatics. Basically, they were there to fight fascism, loosely defined in that context as anti-socialism.