Is there going to be a u. s. and north korea war? if this happens how does this hurt the u. s. economy?

Would hurt the US economy because China wold be forced to side with North Korea and trade would not occur

If there was a war with North Korea it would most likely not just be with the U.S. it will probably be North Korea against almost all our nations. North Korea has no real allies, because of their constant expansion of nuclear weapons and how their leader is in a sense crazy. If North Korea went to war it would most definitely be nuclear, North Korea would probably launch their nukes. I mean why else would they be making so many if they didn't plan to use them?

If for some reason North Korea doesn't use nukes (very unlikely) the economy will probably dip then come back up. Like WW1 was great for the U.S. economy. World War 2 was not. So it depends on many aspects. If North Korea does use nukes... well... nobody wins in nuclear war. The economy would be the last worry if U.S. was hit with nukes...