Because they feel insecure.
No
It is very unlikely that North Korea will launch a nuclear weapon against the United States, but the arbitrary and capricious nature of the North Korean government means that there is no real guarantee that North Korea will not launch a nuclear weapon. As a result, it remains a possibility, even if not a major one.
North Korea.
yes
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.
I think that north Korea is one and an other is china.
North Korea does not actually intend to use a nuclear weapon against the United States, since there is nothing that North Korea would actually gain from using it. If North Korea launched a nuclear missile at the United States, it would immediately (1) lose the backing of China, which is the only reason that the United States refuses to invade North Korea, (2) start a hot war with the United States whose army could destroy the North Korean military, and (3) make North Korea a complete international pariah.North Korea trades on the threat that it will use a nuclear weapon against South Korea, Japan, and the United States in order to get desperately needed aid money and supplies from its enemies. It is nothing more than an extortion racket that North Korea employs as a method overcome the fact that the country makes no product worthy of export other than ginseng (which nobody wants).
The Asian country you seek is North Korea.
Israel, as they refuse to acknowledge they have the weapons; and North Korea.
because north Korea has a nuclear weapon and south doesn't have it. and there is no good to war against each other. WAR= using nuclear weapon = destroying whole Korean peninsula and some part of japan, china and Russia That means killing a lot of lives
First nuclear weapon test was October 9, 2006. Last nuclear test was September 3, 2017. SORRY IF THIS DOES NOT HELP
The Democratic People's Republic of Korea (known colloquially as North Korea) announced and tested its first nuclear weapons test in 2006. On October 3, 2006, North Korea announced that it planned to test a nuclear weapon. The weapon was tested on October 9th. The yield was approximated to be about 0.48 kilotons (480 tons), and is widely believed to have been a "fizzle."