Describe some of the effects of the introduction of nuclear weapons

We learned how to kill many more with much less.

We learned that major powers no longer needed massive armies to conquer other countries. On the other hand, occupation became a much more expensive proposition.

We learned that major powers still engaged in an arms race in traditional weaponry.

We learned to fight wars by proxy using other countries as pawns.

d. japan's attack on pearl harbor

straight down to hell mate