Genesys+M

Blitzkrieg (German, literally lightning war or flash war) is a popular name for an offensive operational-level military doctrine which involves an initial bombardment followed by employment of mobile forces attacking with speed and surprise to prevent an enemy from implementing a coherent defense. The doctrines resulting in the blitzkrieg effect were developed in the years after World War I as a method to help prevent trench warfare and linear warfare.  Blitzkrieg was first used on any serious scale by the German Wehrmacht in World War II. While operations in Poland were rather conventional (see detailed discussion below), later operations early in the war particularly the invasions of France, The Netherlands and initial operations in the Soviet Union were effective owing to surprise penetrations, general enemy unexpectence and an inability to react swiftly enough to the superior German military doctrines. The Germans faced numerically superior forces and technically superior vehicles in the invasion of France, proving the early effectiveness of their tactics and strategies. From this peak, the Wehrmacht's cohesion deteriorated. Heinz Guderian, an early implementer of blitzkrieg, was relieved of command on 25 December 1941, for ordering a withdrawal in contradiction of Hitler's "standfast" order. This showed a fundamental doctrinal difference between Hitler's view of military strategy and the Wehrmacht's proven system. This event undermined confidence and military effectiveness from that point onwards. After this point, German offensive operations were severely limited; the last major blitzkrieg style operation in the East was at Kursk in July 1943, and the last in the west was the Ardennes Offensive in December 1944. By this period, the Allies had developed effective defensive tactics to deal with these operations.  Methods of blitzkrieg operations centered on using maneuver rather than attrition to defeat an opponent. The blitzkrieg thus first and foremost required a combined arms concentration of mobile assets at a focal point, armour closely supported by mobile infantry, artillery and close air support assets. These tactics required the development of specialized support vehicles, new methods of communication, new tactics, and an effective decentralized command structure. Broadly speaking, blitzkrieg operations required the development of mechanized infantry, self-propelled artillery and engineering assets that could maintain the rate of advance of the tanks. German forces avoided direct combat in favor of interrupting an enemy's communications, decision-making, logistics and of reducing morale. In combat, blitzkrieg left little choice for the slower defending forces but to clump into defensive pockets that were encircled and then destroyed by following German infantry.