The Elastic Defense(Defence in depth):
Developed to a "T" by the great Field Marshall,Erich von Mansteinin.Which he used to destroy 52 russian divisions in the Third Battle of Kharkov.Von Mansteinin planned a flawless fighting withdraw to a place where he knew he could beat the russians.He withdrew until the enemy was stretched thin and the supply lines were over extended.Then snap back on them like a rubber ban(elastic).He was close to his supplies and built up for the assault.This tactic allows for the power to break through and the strength to keep momentum.

Elastic Defense,should be studied and used in the opening hours and days as well as,where/when the enemy is breaking through with great strength.

So,basically you withdraw in a classic fighting retreat to thin the enemy line.Draw him away from his supplies.And,in the end lead him to a place of your choosing where you plan to annihilate him.

http://en.wikipedia.org/wiki/Defence_in_depth

http://en.wikipedia.org/wiki/Third_Battle_of_Kharkov

http://upload.wikimedia.org/wikipedia/commons/5/50/Kharkovcounteroffensive.png