Yes, and field hospitals and stuff. The second echelong supposedly has a higher fraction of support units than the first echelong. The job of the first echelong is to surge forward, identify the weak spots in the enemy line, break through, push on, probably avoiding cities, and link up with the airborne units. The second echelong follows and eliminates the bypassed and surrounded enemy units, mopping up, and occupies the cities.

If the Russians push the button, we will probably see a classical performance of blitzkrieg, which actually is a Russian invention (or at least pretty much - it's a but complicated) - before Stalin murdered all the officers.

Anyway, Deep Battle with Operational Maneuver Groups, here we go.

Peak oil is not an energy crisis. It is a liquid fuel crisis.