Somewhere in the bowels of HROT there is a Lucas80 book review of Where The Iron Crosses Grow, by Robert Forczyk. It's about the brutal slog for several years between the Germans and Soviets on the Crimean peninsula. Ukraine doesn't have the manpower to dislodge the Russians if they bury in like ticks, as I suspect they are going to do. The entrance to the peninsula is extremely narrow, and rugged. The only way the Russians are leaving is via a popular uprising, and the Russians have spent decades purging Crimea of Ukrainians. Now, maybe the Russian civilians beat feat, and the soldiers follow?