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. Diplomatic Flurry Precedes Korean War Games VOA News 27 November 2010 A map of possible North Korean artillery positions hangs over a phone and a radio inside a guard post on the South Korean island of Yeonpyeong, 26 Nov 2010 Photo: AP A map of possible North Korean artillery positions hangs over a phone and a radio inside a guard post on the South Korean island of Yeonpyeong, 26 Nov 2010 China launched a flurry of diplomatic activity Saturday to ease tensions on the Korean peninsula after North Korea's shelling of a South Korean island. The diplomatic activity came as the United States and South Korea prepared for military exercises.  The two countries are scheduled to begin the long-planned war games Sunday, less than a week after North Korean forces shelled the South Korean island of Yeonpyeong, killing two marines and two civilians. North Korea's state-run media has criticized the drills, warning the two Koreas are on "the brink of war." China Saturday sent two top officials to Seoul to meet with South Korea's foreign minister in an effort to promote calm. Chinese Foreign Minister Yang Jiechi also called his Russian counterpart Sergei Lavrov for consultations. Chinese officials say both moves were focused on easing tensions and kick-starting stalled talks over North Korea's nuclear program. China has warned it opposes any "unilateral military act" in the area without its permission, referring to the U.S.-South Korean drills. Admiral Mike Mullen, chairman of the U.S. Joint Chiefs of Staff, told CNN, in an interview due to air Sunday, that, as North Korea's closest ally, China has as much at stake as anyone if the region is destabilized. Meanwhile, North Korea leveled new accusations at South Korea Saturday, charging Seoul was using the civilians on the island of Yeonpyeong as a human shields. The North's official Korean Central News Agency also said if there were civilian deaths, they were "very regrettable." South Korea also upped the rhetoric Saturday during the funeral for the two marines killed in Tuesday's attack by Pyongyang. Marine commander Lieutenant General Yoo Nak-joon vowed a "thousand-fold" retaliation against the North. The comments to hundreds of high-ranking politicians, generals, religious leaders and civilians were also broadcast nation-wide. Some information for this report was provided by AP, AFP and Reuters. .