Kim Jong-un on a war path: How North Korea became a threat to world peace. Kim wanted to negotiate with Trump on an equal footing, while the US President was looking for a quick deal.
The result: North Korea is a long way from denuclearization, as Trump had sought. Instead of diplomacy, he began using threatening military gestures. In 2020, in the first year, he had four rocket tests carried out, the following year twice as many and in 2022 a record number of around 90 tests.