Pompeo is also due to meet the South Korean and Japanese foreign ministers.
In this handout photo released by the South Korean Defense Ministry, U.S. M270 Multiple Launch Rocket System firing an MGM-140 Army Tactical Missile during a U.S. "We'll see what happens tomorrow".
The US and South Korea are security allies, with about 30,000 American troops based in country to defend it from its northern neighbour, which launched an invasion in 1950.
"I think what the vice president said today - and we'll continue to clarify what the president had talked about - exercises will continue with South Korea", Gardner said during a news conference with other GOP leaders.
Nothing about the summit sat well with Moon Seong-mook, a former South Korean military official.
The U.S. had previously said it would never make such a move because the military exercises were part of its military alliance with South Korea and served as a deterrent to Kim Jong-un.
"It is up to the USA and South Korea to decide about their joint exercises".
"[Pence] was very clear: regular readiness training and training exchanges will continue", Gardner said on Twitter. "At the same time, there needs to be a peace mechanism for the peninsula, to resolve North Korea's reasonable security concerns".
The Pentagon has denied that US Defence Secretary Jim Mattis was caught off guard by the president's announcement, saying "there were no surprises".
"Secretary Pompeo is scheduled to visit Cheong Wa Dae on Thursday".
"Great progress was made".
The official Rodong Sinmun newspaper carried four pages of photographs of Kim and Trump at the historic meeting, plus the full text of the letter the two leaders signed.
Bishop said Australia had already offered its services with regards to denuclearisation "because we have expertise in that regard".
Moon Seong Mook, a former South Korean military official, said Trump's comments on the drills confirmed what many in South Korea had feared all along - that North Korea would attempt to drive a wedge between Washington and Seoul and gain substantial concessions from an unconventional US president who thinks much less of the traditional alliance than his predecessors.
The International Atomic Energy Agency (IAEA) has said it is ready to verify a deal, although it focuses on monitoring nuclear materials and sites rather than disarmament.
In contrast to the reaction of many nations, Iran issued a warning to North Korea. The absolutely key item is number 3: "Reaffirming the April 27, 2018, Panmunjom Declaration, the DPRK commits to work toward the complete denuclearization of the Korean Peninsula".
Nam said Seoul welcomed the news that President Trump had "sufficiently expressed" his trust in Kim.
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