Gary Grigsby’s War in the East: The German-Soviet War 1941-1945 is a turn-based World War II strategy game stretching across the entire Eastern Front. Gamers can engage in an epic campaign, including division-sized battles with realistic and historical terrain, weather, orders of battle, logistics and combat results.
The critically and fan-acclaimed Eastern Front mega-game Gary Grigsby’s War in the East just got bigger and better with Gary Grigsby’s War in the East: Don to the Danube! This expansion to the award-winning War in the East comes with a wide array of later war scenarios ranging from short but intense 6 turn bouts like the Battle for Kharkov (1942) to immense 37-turn engagements taking place across multiple nations like Drama on the Danube (Summer 1944 – Spring 1945).
I'm not running the latest patch, but I have found that unless the axis take Sviritsa (which I can't tell if you have or not in the screenshot) the russian units will NOT be isolated. If you want to destroy and not just rout these guys, you will need to take Sviritsa--much more difficult!
Side benefit though, once you do, you have linked up with the Finns and they can take over part of the line. Moreover, if you are playing the AI, it will usually avoid attacking the finns in the first winter since they are winterised and do not suffer the same penalties as the rest of the axis units. This means you can increase your operational density over the rest of the front, and maybe even create some extra reserves to deal with the breakthroughs which are quite likely.
But I'm not sure if it all works the same in most recent patches.