Moon, a strong supporter of former Presidents Kim Dae-jung and Roh Moo-hyun's Sunshine Policy of engagement of the North, kept open the possibility of an inter-Korea summit but said it could only be held when Pyongyang "changes its behavior".
North Korea conducted its latest ballistic missile test on Sunday in defiance of UN Security Council resolutions, saying it was a test of its capability to carry a "large-size heavy nuclear warhead".
Army Gen. Vincent Brooks, the commander of U.S. Forces Korea, said in a written statement to the Senate Armed Services Committee previous year that Kim has emerged as more unsafe and unpredictable than his father.
North Korea, on various occasions, has announced that it seeks to develop a nuclear-capable ballistic missile with the ability to strike the U.S. mainland. Getting diplomacy going is likely to depend heavily on United States acquiescence, with the Trump Administration insisting diplomacy is a "failure". "Put enough pressure on him to "do something about North Korea" and he might succumb to that pressure, with disastrous results", Martin said.
Kim started the press conference praising the North's successful ballistic missile launch last weekend, which experts said demonstrated a significant technological jump - with the rocket flying higher and for a longer period of time.
Regarding the Korean Peninsula nuclear issue, Wang said China is willing to work with all sides on more effective measures, and that China insists on solving the issue through dialogue and is determined to safeguard peace and stability on the peninsula.
"You either support North Korea or you support us", USA ambassador to the UN, Nikki Haley said, suggesting some countries were failing to adhere to UN-imposed sanctions.
For comparison, the United States had very high failure rates in the initial development of its Redstone, Vanguard, Atlas, and Titan missile programs.
He also adopted a softer tone on Xi's help with North Korea: "I believe he is trying very hard".
BEIJING (AP) A rap group backed by China's government is warning South Korea in a music video that "you're going too far" with the deployment of a US missile defense system, as Beijing seeks to bring its state-supported cultural forces to bear in the global dispute.
Moon now faces a dilemma on pursuing his intended engagement toward North Korea or defending United Nations resolutions. However, Moon is now seeking a two-track policy of sanctions and dialogue.
Admiral Harry Harris Jr, who is in charge of the United States Pacific Command based in Hawaii, said on Wednesday (17 May) that North Korean leader Kim Jong-un was inching closer to developing a nuclear warhead capable of striking any country.
Harris insisted that dealing with the threat of a nuclear North Korea was not just a regional or a USA problem (given that the US bears the brunt of much of North Korea's bellicose language), but a world problem.
President Trump was ridiculed during his campaign for suggesting that South Korea and Japan may want to consider deploying their own nuclear weapons.
Before an emergency meeting of the council Tuesday, U.S. Ambassador Nikki Haley declared: "You either support North Korea or you don't, but you have to choose".
In the absence of good military options or a Chinese deus ex machina, the remaining options for eliminating the threat are limited.