"What does it mean to stop war games?" said Ambassador Joseph Yun, who served as the US special envoy on North Korea at the end of the Obama administration and during President Trump's initial months in office.
A day after his historic nuclear summit with North Korean dictator Kim Jon Un in Singapore, Trump took to Twitter on Wednesday saying the meeting was a "very positive experience" and "everyone can feel much safer than the day I took office".
"The President of the US expressed the possibility of suspending the US - South Korea joint military exercises. and, as progress is made from dialogue and negotiations, lifting sanctions against DPRK", state media said.
Kim Jong Un understood getting rid of his nuclear arsenal needed to be done quickly and there would only be relief from stringent United Nations sanctions on North Korea after its "complete denuclearisation", Pompeo said.
U.S. Secretary of State Mike Pompeo, right, walks with U.S. General Vincent K. Brooks, left, commander of United States Forces Korea, upon his arrival at Osan Air Base in Pyeongtaek, June 13, 2018.
During the summit in Singapore on Tuesday, Kim said there are possibilities for him to meet with Abe, according to the source. In return, Trump has promised to stop USA military drills in South Korea.
He also said that the North Korean leader agreed to destroy a "major" missile testing site.
The drill is designed in the spirit of the US-South Korean mutual defense treaty of 1953, the Pentagon said.
The tweet followed a New York Times story on the Trump administration's lack of scientific expertise, the president's questioning of the honesty of the American media at an global summit in Canada and his dismissal of diplomatic expertise in favour of using a "touch and feel" approach in his talks with Kim. No longer - sleep well tonight!'
Five South Korean women repatriated after causing trouble during Trump-Kim summit
President Donald Trump's comment about being touchy feely in a meeting with North Korean leader Kim Jong Un were mocked by comedians.
Two North Korean missiles flew over Japan a year ago as Pyongyang made rapid advances in its programme to develop a missile capable of striking the USA mainland with a nuclear warhead.
Japan formally lists 17 citizens as abduction victims and suspects North Korea is involved in many more disappearances.
Pompeo faced immediate questioning from his traveling press about the content of the agreement with North Korea.
Pompeo said Trump was alluding to the fact that it was the first time a sitting USA president had met with Kim, adding that both leaders had a "blunt conversation" about the need for the communist state to rejoin the world community.
State media also said that Trump agreed to lift sanctions and promised unspecified security guarantees.
"The document is short on details, "Schumer said".
"Let me assure you that "complete" encompasses verifiable in the minds of everyone concerned", Pompeo said.
"He (Trump) made it very clear that the condition precedent for the exercises not to proceed was for productive, good faith negotiations being ongoing", Pompeo told reporters. -South Korean exercises appeared off-limits under the new guidance.