U.S. Defense Secretary Mark Esper (L) meets with South Korean Defense Minister Jeong Kyeong-doo (R) in Seoul, South Korea November 15, 2019. Chung Sung-Jun/Pool via REUTERS *** Local Caption *** SEOUL, SOUTH KOREA - NOVEMBER 15: U.S. Defense Secretary Mark Esper (L) attends with South Korean Defense Minister Jeong Kyeong-doo (R) during their meeting on November 15, 2019 in Seoul, South Korea. Pentagon chief visits South Korea as a part of his tour