South Korea has developed strong economic and cultural relationships with various countries around the world. Japan is South Korea's third-largest trading partner, while China is its largest and crucial ally in dealing with North Korea's nuclear ambitions. The United States is one of South Korea's most important allies, both economically and militarily. Russia, Australia, India, Vietnam, Philippines, Thailand, Indonesia, and Singapore are also significant markets for South Korean exports and investments. These relationships have been crucial to South Korea's economic, political, and cultural well-being.