South Korea deploys Cheonma SAM on Yeonpyeong island Posted on December 2, 2010 by alert5 South Korea has deployed Cheonma surface-to-air missile on Yeonpyeong island to beef up its defenses. Related posts (Automatically Generated): F-22 could be dispatched to South Korea for exercise South Korea plans to have 2 new SIGINT aircraft U.S. Patriot missiles deployed in Poland South Korea’s new cruise missile can hit 1,500 kilometers away China’s missiles could close down USAF bases in South Korea, Japan South Korea won’t join US missile defense shield