Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. With Latest Launches, North Korea Perfecting 'Scary Impressive' Missile William Gallo SEOUL - With its latest test Wednesday, North Korea has now launched seven ballistic missiles over the past three months, after having refrained from such launches for a year and a half. By firing missiles into the ocean, North Korea is expressing its anger at upcoming U.S.-South Korea joint military exercises and presumably trying to increase its leverage over the two allies amid stalled nuclear talks. But the missile tests have more than symbolic importance. North Korea appears to be perfecting a new short-range missile that represents a unique threat to U.S. interests in the region. Though the latest launch is still being analyzed, South Korean officials say the North appears to have tested some version of the same weapon each time: a modified version of a Russian-developed Iskander missile. The North's missile, dubbed KN-23 by U.S. and South Korean intelligence officials, is easy to hide, can be quickly deployed, and is difficult for U.S. and South Korean missile defenses to intercept, according to analysts. "It is not appropriate to shrug off these tests as short range." says Leif-Eric Easley, a professor at Ewha Womans University in Seoul. "These missiles represent technological developments that threaten U.S. allies and forces in Asia." Though he has not commented on the latest launch, U.S. President Donald Trump has downplayed the importance of the prior tests, saying the missiles are not long-range and cannot reach the United States. Trump's laid-back response, which has been echoed by South Korea's government, is an apparent attempt to preserve the possibility of talks with North Korea that have been stalled for months. But by refusing to heavily criticize the launches, Washington and Seoul risk encouraging more tests of North Korean missiles that represent a major threat to South Korea, which hosts nearly 30,000 U.S. troops. "Trump unfortunately dismisses short-range ballistic missiles, so it enables Pyongyang to continue to develop its weapons," says Duyeon Kim, an adjunct senior fellow at the Center for a New American Security (CNAS). .