<Tr> <Th_colspan="2"> Envoy </Th> </Tr> <Tr> <Th> Ambassador Ahn Ho - Young </Th> <Td> Ambassador Harry B. Harris Jr . </Td> </Tr> <P> South Korea--United States relations (Hangul: 한미 관계; Hanja: 韓 美 關係; RR: Hanmi gwangye; MR: Hanmi kwan'gye) have been extensive since 1950, when the United States helped establish the modern state of South Korea, also known as the Republic of Korea, and fought on its UN-sponsored side in the Korean War (1950--1953). During the subsequent four decades, South Korea experienced tremendous economic, political and military growth, and significantly reduced U.S. dependency . From Roh Tae - woo's administration to Roh Moo - hyun's administration, South Korea sought to establish an American partnership, which has made the Seoul--Washington relationship subject to some strains, especially with the Anti-US / Korean sentiments . However, relations between the United States and South Korea have greatly strengthened under the conservative, pro-U.S. Lee Myung - bak administration . At the 2009 G20 London summit, U.S. President Barack Obama called South Korea "one of America's closest allies and greatest friends ." In addition, South Korea has been designated as a Major non-NATO ally . </P> <P> According to a 2014 BBC World Service Poll, 58% of South Koreans view the United States' influence positively, while 28% view it negatively; 55% of Americans view South Korea's influence positively, while 34% view it negatively . South Korea is one of the most pro-American nations in the world . </P>

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