Japan, the United States and South Korea have steadily built on their security cooperation amid China's rise and North Korea's belligerence, but the future appears precarious with the unpredictable Donald Trump returning to the White House, and South Korean President Yoon Suk Yeol mired in a crisis that threatens his leadership.Experts in international relations warn the United States will likely pull back from its involvement in East Asian security affairs during Trump's second term starting Jan. 20, with the 78-year-old Republican expected to recommit to his "America First" platform and h…READ FULL ARTICLE