President Lee Jae Myung's visit is expected to spotlight trade, alliance costs and North Korea as he seeks to set the tone with Trump's second-term White House.

As South Korean President Lee Jae-Myung prepares to meet his American counterpart Donald Trump, he would face his first major foreign policy test, i.e. balancing ties with the US and China

South Korea's new president, Lee Jae Myung, will face a pivotal moment on Monday when he meets U.S. President Donald Trump in Washington for their first summit, as the countries' decades-old alliance strains to confront rapid geopolitical changes.