Trumps fiery words were roundly criticized by the liberal media, yet they put enough fear in China to get them to do 2 things that they had never done before. First they tipped their hand that NK will get no support if they fire on the US first which means we don't have to worry about starting WWIII if we respond. Second, we got China to go along with the rest of the UN in applying sanctions to NK - meaningful sanctions.
As a result, NK backed away for the first time this week from their bravado about missile testing around Guam.
Excellent brinksmanship by President Trump. We are far safer against NK now that China has been spooked enough to act and tip it's hand than we have been for a while. Kim will not fire first without China behind him.