To intimidate & threaten.
No
North Korea would first launch a Nuclear Missile at South Korea, due to there past arguments. This would prompt the U.S to launch a missile, causing a nuclear war between communists and democracies.
About 4,000 miles which is the range of NK's nuclear missile.
I'm pretty sure your referring to North Korea. North Korea did withdraw from the Nuclear Non-Proliferation Treaty (NPT) in 2003. However North Korea did not actually test its first atomic weapon untill 9 October 2006.
The North Korean missile crisis was concerning for several reasons. First, there was the possibility of North Korea starting a nuclear war with the USA. Second, the problem with North Korea is that its leader is generally not in the best of mental stability.
Nuclear threats are a real cause for concern. It seems that North Korea is making some real headway in their nuclear technology and is getting closer to mounting a nuclear bomb to a missile. This is great cause for concern since North Korea is constantly talking about a nuclear assault on the United States.
North Korea does. Not South Korea.
No. Al though, North Korea does possess 5-6 nuclear weapons
We do not know yet.
There is no South Korean nuclear program. It is North Korea which has an illegal nuclear program.
Currently there are lots of conflicts taking place in the world. At the moment North Korea seems to be indicating that it is planning on testing another nuclear missile which is strongly condemned by Japan, South Korea and the United States. If North Korea carries out this test in could result in a war.
North Korea's development of nuclear weapons has served as a major deterrent for Western incursions into North Korea as well as increased fear from democratic neighbors like Japan and South Korea.