The Trumpsters trumpeted too soon, as North Korea is as mean as ever, according to a rant by KCNA, the North Korean news agency:
  https://www.breitbart.com/national-security/2018/07/08/world-view-north-korea-issues-vitriolic-anti-u-s-rant-collapsing-denuclearization-talks/

“It was, however, so regretful to mention what the U.S. side had shown in its attitude and stand at the first DPRK-U.S. high-level talks held on 6 and 7 July. The DPRK [North Korea] side, during the talks, put forward the constructive proposals to seek a balanced implementation of all the provisions of the Joint Statement out of its firm willingness to remain faithful to the implementation of the spirit and agreed points of the DPRK-U.S. summit meeting and talks.

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But, the U.S. side came up only with its unilateral and gangster-like demand for denuclearization just calling for CVID, declaration and verification, all of which run counter to the spirit of the Singapore summit meeting and talks.
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The issues the U.S. side insisted on at the talks are all roots of troubles, which the previous administrations also had insisted on to disrupt the dialogue processes, stoke the distrust and increase the danger of war.
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The first DPRK-U.S. high-level talks this time brought us in a dangerous situation where we may be shaken in our unshakable will for denuclearization, rather than consolidating trust between the DPRK and the U.S. In the last few months, we displayed maximum patience and watched the U.S. while initiating good-will steps as many as we can. But, it seems that the U.S. misunderstood our goodwill and patience. The U.S. is fatally mistaken if it went to the extent of regarding that the DPRK would be compelled to accept, out of its patience, the demands reflecting its gangster-like mindset.
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But, if the U.S., being captivated in a fidget, tries to force upon us the old ways claimed by the previous administrations, this will get us nowhere.
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We still cherish our good faith in President Trump.”

     This is full of mixed messages, so one should not trust them. No doubt North Korea will continue to work away on its nuclear weapons program come what may. Conflict and eventual war with the West is inevitable; it is just a question of when.