Due to Mongolia’s geopolitical location, both China and Russia has had a great influence on Mongolia for centuries. With Russia, or the former Soviet Union’s help and military support, Mongolia was able to be independent from China. However, because of the same reason since then Mongolia became a Soviet Union’s dependent country till the collapse of the Soviet Union. In the late 1990’s, Mongolia shifted from the Communism to democracy. Continuing with its transformation, in the beginning of 21 Century Mongolia acts a new multi-pivot foreign policy, not only keeping equidistant diplomacy relationship between China and Russia but also eagerly strengthens the so called “the third neighbor policy” foreign relationship with the United States, Japan and the Western countries. Among its third neighbor countries, Mongolia regards the United States as the No. 1 partner country. Mongolia plans to use U.S. to balance against both China and Russia, and to pursue the best interests of the economy and diplomacy for Mongolia from the balance relationships in all respects.