Tension between Pyongyang and Seoul has increased in recent weeks , with North Korea announcing it would scrap peace agreements with the South , warning of a war on the Korean peninsula and threatening to test a missile capable of hitting the western United States . New missiles can travel about 3,000 kilometers . The new missile is expected to be able to carry a nuclear warhead and will have an operational range of up to 3,400 kilometers (1,800 miles) — far enough for the U.S. military to reach any part Tensions on Korean peninsula running high .
New missiles can travel about 3,000 kilometers . The new missile is expected to be able to carry a nuclear warhead and will have an operational range of up to 3,400 kilometers (1,800 miles) — far enough for the U.S. military to reach any part Tensions on Korean peninsula running high .