U.S. Vice President Joe Biden is in South Korea on the final leg of a three-nation tour of Asia, AP reported. Biden touched down on a U.S. military base south of Seoul on Thursday after stops this week in China and Japan. He'll meet with South Korean President Park Geun-hye and deliver a major speech at Yonsei University about America's Asia policy and the U.S.-Korea relationship. He'll also lay a wreath at a ceremony honoring fallen U.S. troops and visit the Demilitarized Zone between South Korea and North Korea.