Operation Barbarossa: The Surge (Part 6)

The operational meat of the Barbarossa series: Panzer Group Guderian's advance to the Dnieper, the problem of outrunning your own logistics, and the Wehrmacht's treatment of Soviet partisans and POWs. Holland is particularly good on the paradox of 'suffering from success' — how rapid advances created vulnerabilities that would matter enormously by autumn. More campaign-focused than Part 7, and the stronger episode of the two this week.