File photo taken March 31, 2008 shows replicas of North Korea's Scud-B missile (background C) and various South Korean missiles on display at the Korea War Memorial Museum in Seoul. North Korea has fired four missiles on the eve of US Independence Day celebrations on June 4, 2009, South Korea's Joint Chiefs of Staff said, further stoking tensions amid an international nuclear standoff. The fourth missile was fired around noon (0300 GMT), the military said. Getty Images logo Getty Images 4 months ago

File photo taken March 31, 2008 shows replicas of North Korea's Scud-B missile (background C) and various South Korean missiles on display at the Korea War Memorial Museum in Seoul. North Korea has fired four missiles on the eve of US Independence Day celebrations on June 4, 2009, South Korea's Joint Chiefs of Staff said, further stoking tensions amid an international nuclear standoff. The fourth missile was fired around noon (0300 GMT), the military said.