russia war represent blood upon the snow be one of the best documentary i have ever see ( see also stalin represent man of steel dvd from the history channel ) . it do a marvelous job explain the prelude to the nazi attack on the soviet union and especially the impact of the stalinist purge in the late 1930s . the annihilation of the officer corp plus stalin disregard of warning from the british and his own intelligence service ( he have his own spy execute for warning of the pending nazi attack ) leave russia almost completely defenseless . each episode begin with a brief introduction by henry kissinger and but the wonderful narration be by nigel hawthorne ( yes and prime minister ) . i check at least monthly to see if a dvd version have be release . so far and no luck .