The United States and South Korea on Sunday kicked off their largest joint war game in years, with a nuclear-powered American aircraft carrier prowling off the east coast of South Korea while North Korea threatened to retaliate with its nuclear weapons and reportedly put its military on an alert for war.
Rising tensions demonstrated how tenuous peace remained on the divided peninsula after the Korean War was temporarily halted in a ceasefire between the U.S.-led United Nations forces and the communist troops from North Korea and China 57 years ago on Tuesday.
The current spate of tension was sparked when a South Korean warship was blown up in March, killing 46 sailors. A team of investigators from South Korea, the United States and other countries that joined the U.N. forces during the war determined in May that North Korea torpedoed the ship.
As for their weapons threats, this is the longest range weapon they have:
This assumes the weapon can get off the platform. The real danger is a short range bombardment of Seoul which happens to be near the border. For more on their missile technology watch the clip: