Tuesday will be Power Plant Day, and Bridge Day, all wrapped up in one, in Iran. There will be nothing like it!!! Open the Fuckin’ Strait, you crazy bastards, or you’ll be living in Hell – JUST WATCH! Praise be to Allah. President DONALD J. TRUMP
Characterizing Trump's tweet as terrorism, Krugman says:
... terrorism is a strategy of the weak. It’s what extremists do when they lack the ability to achieve their goals through military action or other non-criminal means.
And that’s where Trump and his officials find themselves. They inherited a powerful military (which they are rapidly degrading), but for all its firepower this military lacks the wherewithal to open the Strait of Hormuz to normal traffic. So the Trumpists are gearing up to impose suffering and death on innocent civilians instead, even though this suffering and death will do nothing to achieve America’s objectives.
He suggests that military officers may invoke their right and duty to disobey illegal orders. (He doesn't mention the possibility that they may be asked to drop a nuclear weapon.)
He concludes:
The horrible but undeniable fact right now is that America has a terrorist president. And the whole world knows it. But we still have a chance to show the world that he is an aberration, that we are not a terrorist nation. And we can do that by standing up for the values that have always defined us.