Retired U.S. Navy Adm. James Stavridis is vice chairman for global affairs and a managing director at private equity firm The Carlyle Group. He previously served as supreme allied commander of NATO and dean of the Fletcher School of Law and Diplomacy at Tufts University in Medford, Massachusetts. He is the author of "2034: A Novel of the Next World War."
Gone are the days of "love letters" between North Korean leader Kim Jong Un and Donald Trump, the former U.S. president who allegedly has kept several of the missives to show guests at his south Florida home.