Germans ONLY "Little Saturn" No Russians Pls

[Glider]

I am far from happy about this development. Russian troops are starting to swing north along the south-north road. I am shifting reserves to meet this threat but if another Russian unit comes down from the north to link up with these troops I am in a world of trouble.

Is the kampfgruppe F covering my back and the northern approach? Judging by the strategic map it looks like it is too far west to be capable of doing this.