U.S. Secretary of State Mike Pompeo met South Korean President Moon Jae-in in Seoul to discuss the outcome of the summit between U.S. President Donald Trump and North Korean leader Kim Jong Un.

“President Trump has been incredibly clear about the sequencing of denuclearization and relief from the sanctions,” Secretary of State Mike Pompeo told reporters after meeting South Korea’s president and Japan’s foreign minister in Seoul.

US President Donald Trump and North Korean leader Kim Jong-un signed a joint statement at the end of their historic meeting in Singapore on Tuesday, promising a new relationship between the nations and pledging to work toward complete denuclearization of the Korean Peninsula.

He has already invited the North’s leader to visit the White House and Kim Jong-un has agreed to come.

According to Pyongyang's official news agency the KCNA , early on Wednesday, Kim agreed to the "complete denuclearization of the Korean Peninsula" if the two sides refrained "from antagonizing... each other out of mutual understanding."

The KCNA also said that the two men each asked the other to visit their country.

Trump's decision to withdraw from the JCPOA will certainly diminish America's trustworthiness and prestige, making it much harder to trust the American side, and this no doubt had a bearing on the negotiations in Singapore.

Trusting America is certainly going to be risky, and it is something that the North Koreans should certainly ponder -- a cautious approach towards Donald Trump and his administration, is well-advised.