Some Trump administration officials believe an accelerated thawing of relations between Seoul and Pyongyang will undermine Washington’s efforts to pressure Kim into giving up his nuclear weapons.

'It was another step forward. So this is, I think, a good outcome for all of us.'

The secretary of state also will visit Japan, South Korea and China.

'We have started a bold journey toward a permanent peace and prosperity on the Korean Peninsula.'

'We're doing well and we're getting our remains back very important. We believe no American should be left behind.'

'These moves are expected to help resolve the international community’s doubts toward North Korea’s preemptive dismantling moves in the past as a mere show.'

'I think it was our people’s wish that we come up with good results as fast as we can.'

'The president has achieved tremendous success with his policies so far.'

'Kim Jong Un showed that he did not want to antagonize President Trump.'

'We will get it done together!' President Trump tweeted.