Protestors sit next to a statue symbolizing former "comfort women," who were forced into sexual slavery by Japan during World War II, during a weekly rally near the Japanese Embassy in Seoul on Jan. 10, 2018.
South Korean President Moon Jae-In is welcomed by Japanese Prime Minister Shinzo Abe before a family photo session at the G-20 summit in Osaka, Japan, on June 28.
South Korean protesters sit near a statue of a teenage girl symbolizing former "comfort women", who served as sex slaves for Japanese soldiers during World War II, during a weekly anti-Japanese demonstration in front of the Japanese embassy in Seoul on November 21, 2018.
South Korean President Moon Jae-in talks on the phone with U.S. President Donald Trump at the presidential Blue House on February 28, 2019 in Seoul. (Photo by South Korean Presidential Blue House via Getty Images)
U.S. soldiers from the 2nd Armored Brigade Combat Team, 1st Cavalry Division, take part in the Warrior Strike VIII exercise at the Rodriguez Range in Pocheon, South Korea, on Sept. 19, 2017. (Chung Sung-Jun/Getty Images)
North Korea's leader Kim Jong Un (L) bids farewell to South Korean President Moon Jae-in (R) on Moon's departure from North Korea at Samjiyon airport on September 20, 2018 in Samjiyon, North Korea. (Photo by Pyeongyang Press Corps/Pool/Getty Images)
South Korean President Moon Jae-in (C) attends the 70th anniversary of Armed Forces Day at the War Memorial in Seoul on Oct. 1. (Photo by Jeon Heon-Kyun-Pool/Getty Images)
South Korea's Unification Minister Cho Myung-Gyun (right) and North Korean chief delegate Ri Son-Gwon exchange joint statements during their meeting at the border truce village of Panmunjom in the Demilitarized Zone (DMZ) dividing the two Koreas on Jan. 9.(/AFP/Getty Images)
SEOUL, SOUTH KOREA - MAY 09: South Korean President-elect Moon Jae-in, of the Democratic Party of Korea, celebrates with supporters at Gwanghwamun Square on May 9, 2017 in Seoul, South Korea. Moon Jae-in declared victory in South Korea's presidential election, which was called seven months early after former President Park Geun-hye was impeached for her involvement in a corruption scandal. (Photo by Chung Sung-Jun/Getty Images)
SEOUL, SOUTH KOREA - JANUARY 12: South Korean President Park Geun-Hye speaks during a press conference at the Presidential Office on January 12, 2015 in Seoul, South Korea. Park outlined her policy plans for the new year. (Photo by Kim Min-Hee-Pool/Getty Images)