Here you go :)
It is commonly said that "Columbus discovered America." It would be more accurate, perhaps, to say that he introduced the Americas to Western Europe during his four voyages to the region between 1492 and 1502.
Answer:
Because during or after the war the European contrives where weakened by war and the was the time for the Japanese to try and expand.
Explanation:
They needed to make roads not only rain tracks and the rules cars come with