North Korea is only a threat to South Korea and no one else. At the start of last November, America began posturing for war against North Korea and Syria. Like the RSII-Coalition, North Korea believed that deterrence would work, since disarmament proved ineffectual for Libya. Two weeks later, China was pushing the US to agree to a Double Freeze de-escalation and denuclearization with North Korea, as South Koreans protested in the streets for peace. The Double Freeze agreement was vetoed by America, but after Trump visited South Korea the focus of military aggression switched from North Korea to Russia. North Korea does not have vast oil reserves, and Kim Jon-un just wants to survive and maintain his power, so there is no incentive for escalation other than fearmonger to the populace to justify increases in military spending. If North Korea went to war with the US then it would definitely be the result of a chemical false flag attack blamed on North Korea. Up until this year, when Turkey smuggled empty canisters into Syria or Al-Nusra kidnapped civilians from Ghouta and Douma and staged a sarin attack, the CIA and White Helmets would traditionally place the blame (preemptively) on Putin and Assad. So the fact that this month's latest chemical false flag attack (in which no one died) has been blamed on Putin and Assad (rather than on a prank played on people suffering from hypoxia in a waiting room), indicates that the US is no longer focused on escalating against North Korea due to South Korea's strong economic ties to China and NATO.
Denuclearization could change this, but the fact that Kim Jong-un is willing to enter South Korea and negotiate face-to-face with President Moon indicates that
he now feels safe enough to give up his deterrence strategy. Both leaders were smiling and confident, which means that military tension is low. If Kim Jong-un felt threatened by anyone, he would not be visiting South Korea, and President Moon would not be visiting North Korea.
The leaders of both North & South Korea
literally crossing borders, shaking hands, and talking face-to-face was the best diplomatic move they could have made, and a confident step towards peace in East Asia.
Trump's Tweet: "Wow, we haven’t given up anything &
they have agreed to denuclearization (so great for World), site closure, & no more testing!"
Video: A day of historic talks - BBC News