Addendum, in case this wasn't clear: the Germans had a lot more than 118 tanks in the theater, they just chose to strip down Army Group Center and deploy their mobile forces to the south. It was their choice to deploy that way.
To people unfamiliar with the concepts, Deep Battle can superficially look like what the Germans generally attempted, but there are key differences. The Germans were not preoccupied with depth per se, the goal was encirclement of enemy forces. (cont)
Whereas the Red Army wanted to get into the operational depth and wreak havoc way behind the line. Encirclement was an intermediate goal. The other key distinctive of deep battle was preparation of multiple strike packages that would advance on the same line, one after another.
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