South Korea officially removes Japan from its "whitelist" of countries with fast-track trade status.
North Korea and South Korea announce that they are planning to officially end the Korean War by writing a peace agreement. An armistice agreement was reached, ending armed conflict, in 1953. U.S. President Donald Trump called the decision to end the war a blessing.
A South Korean adviser says it is "impossible" for South Korea to purchase the THAAD missile complex since control of its operation would remain with the United States. The remarks come after United States president Donald Trump suggested that South Korea pay for the $1 billion system.