I can think of 1 battle that resembled the above drawn "tooth paste" method, but the tables were turned.
It was the Germans defending and the Russians attacking. In a little place named Kurland,
what was left of Army group north had their backs to the sea on 3 sides. The only way the
Russians could attack was frontal.
Where ever the "push" was, they simply threw their defences there. Pretty remarkable job
considering they were cut off from the outside world except for the sea.

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