LogFAQs > #962567142

German and Japanese strategy both basically depended on the idea that a swift kick would bring the opposition tumbling. Both strategies failed due to vastly underestimating the ability and depth of their opponents while overestimating their own. Not to mention that they both essentially assumed a war game mentality and figured that once they acquired resource-rich territories that theyd immediately be fed into their war machine, never accounting for enemy sabotage and battle damage, difficulty in getting enemy infrastructure up and running, and critically transporting resources to where they were needed. And Germans made that error twice versus the Soviets, both in 1941 and again without correcting it in 1942.

Both started marathon campaigns (in Japans case while simultaneously running another marathon in China) and not at all being prepared for it, or with realistic plans in place to transition to marathon campaigns even after their initial successes.