In addition to taunting the U.S.by claiming to have his own "button", he used his New Year's address to take up Moon's offer of talks over the upcoming Winter Olympics in South Korea.
"That could involve targeted military strikes or a full-scale embargo on North Korea".
North Korean leader Kim Jong Un offered during a New Year's Day speech to send a delegation to the Olympics in Pyeongchang, South Korea.
Trump's openness to talks recalled his more accommodating approach during the 2016 campaign, when he said he could negotiate with Kim over a hamburger.
At the same time, the United States has been holding nearly non-stop drills all year in Korea, so it's hard to imagine why there would suddenly be a logistics issue related to the Paralympics which would be putting things on hold. According to the South Korean Presidential Blue House, the two leaders agreed to collaborate in ensuring the success of the games, and to delay planned drills to enable the two nations' militaries to focus on safeguarding security in the region during the games, reported the Korea Herald.
"North Korea is going to be Trump's biggest foreign policy challenge in 2018", Darrell West, a senior fellow at the Washington-based think tank the Brookings Institute, told Xinhua.
The Central Intelligence Agency head also rejected a New York Times article on Sunday that reported USA intelligence agencies had been unable to foresee the North's rapid nuclear strides over the past several months. "Will someone from his depleted and food starved regime please inform him that I too have a Nuclear Button, but it is a much bigger & more powerful one than his, and my Button works!"
A commentary Sunday published by the state-run Korean Central News Agency in Pyongyang described improved ties with Seoul as a "crucial matter", departing from its usually dismissive tone toward the South.
"North Korea sees a moment of opportunity given South Korea's clear interest into wanting to have a positive and peaceful Olympics, and will leverage that moment for tactical gains to ease pressure of sanctions".
On Saturday, North Korea's Olympic representative said the hermit state was "likely to participate" in the games, Kyodo news agency reported.
Still, both the US and South Korea want no disruptions during the Olympics in Pyeongchang, about 50 miles (80 kilometers) from the heavily fortified border between the two Koreas. He has indicated he is open to many different options, including military strikes on North Korea's launch capabilities.
"North Korea would love to see a growing gap between US and South Korea, but its really a byproduct of North Korean goals rather than its objective", Go added.
"It's not what I said at all", he responded.
Figure skating pair Ryom Tae Ok and Kim Ju Sik are the only North Korean athletes who have qualified. "Talks for the sake of talks are meaningless".