Speaking of the Soviets:
-Armageddon Averted: About the fall of the USSR
-Zinky Boys: Memoirs and interviews from those affected by the Soviet Afghan War
-Stalin: The Court of the Red Tsar (still reading it but entertaining so far, and I haven't even reached WW2)
- One Soldiers War: story of a conscript who fought in both Chechen Wars and came back a third time as a correspondent
If anyone has recommendations on a book about Operation Barbarossa or the Eastern Front of WW2 as a whole, I'm all ears