U.S. Secretary of Defense James Mattis (L) and his South Korean counterpart Song Young-moo meet the press before their talks at the Seoul defense ministry's headquarters, South Korea, June 28, 2018. Defense chiefs of South Korea and the United States agreed Thursday to continue peace measures as long as talks with the Democratic People's Republic of Korea (DPRK) last, Seoul's defense ministry said. (Xinhua/Press Corps)