On April 26, President Biden will host the second state dinner of his presidency, with President Yoon Suk Yeol of South Korea. Why is this only the second one of Biden's presidency? Why is South Korea so important for US interests? What are the economic and political pressures in Asia that impact South Korea that so impact the United States? When and why did we enter, 70 years ago, into the U.S.-South Korea alliance, to be celebrated at this state dinner? Ambassador and Korea expert Kathy Stevens joins us to explain.