On Wednesday, the newly appointed South Korean President Moon Jae-in said he would take steps to address the North's nuclear crisis. “I will try to solve the security crisis urgently. If needed, I will fly to straight to Washington. I will also go to Beijing and Tokyo and even Pyongyang in the right circumstances.” The shuttle diplomacy approach will seek to embrace North Korea instead of isolating it, which is known as the South's 'sunshine policy.' The South must leverage economic relations with the North while upholding international policies with the U.S. and China, North Korea's ally and trade partner. Former unification minister Lee Jong-seok claimed that sanctions on North Korea have always failed, and he said Moon will combine "sanctions and dialogue" to resolve the nuclear issue.