High command
The raid shook staff at Japanese Imperial General Headquarters. Japan attacked territories in China to prevent similar shuttle bombing runs. High command withdrew substantial air force resources from supporting offensive operations in order to defend the home islands; two carriers were diverted to the Alaskan island invasion to prevent them from being used as bomber bases and could not be used in the Midway operations. Thus, the raid's most significant strategic accomplishment was that it compelled the Japanese high command into ordering a very inefficient disposition of their forces, and poor decision-making due to fear of attack, for the rest of the war.