( CNN) President Donald Trump effectively ad-libbed his behavior into a test of wills with North Korean president Kim Jong Un and an unpredictable cycle of escalation — largely due to both men’s propensity for white-hot rhetoric and a desire to project strong leadership.

And the bets keep rising.

One day after Trump burnt off a blistering and improvised cautioning to rain “fire and fury” over the socialist country if it kept up its own menaces, North Korea issued an remarkably specific and provocative warn, threatening to send four missiles toward Guam while ridiculing Trump for gushing “a load of nonsense.”