Had the 20th of July bomb plot against Hitler succeeded there would have been strikes and civil war within Germany... Already there were fanatic National Socialists in the army with ranks of captain and major; in the air force the doctrine was even at the highest levels, and the SS was entirely a party group - a state within a state. There were even divisions among the people who for 12 years had heard the same party line and had been effected either favorably or unfavorably from the NSDAP. Out of all this chaos there was not a single person who could have brought these factions together and achieve a peace and a democratic government.
At subsequent Nuremberg Trials
Hitler gave another fateful halt order just when the armoured vanguards of Army Group North had reached the outskirts of Leningrad. Apparently he thereby wanted to avoid the losses of human life and material to be expected from fighting in the streets and squares of this Soviet metropolis against an outraged population, and hoped to gain the same ends by cutting off the city from all lines of supply.