It’s a complete illusion that the US can control this strait. It could destabilize it further if it wishes, but there is no getting a ship through without Iran’s cooperation.

Because Iran has a ton of land along the straight from which they can launch missles, drones, rockets, or even artillery at passing ships. There’s a huge region where they can attack the strait, and the US can’t put hundreds of thousands of troops on that land to hold it all. Therefore Trump cannot declare the strait open, though he can declare the strait closed (this just hurts him most of all).

All his bullshit about floating ships at one end to “gate” the passage, and escorting ships, and shooting down rockets…. It’s complete bluster. Even with the entire US military he cannot guarantee safe passage. And that’s just one of the things he has to do if this war continues. He also has to try to defend our allies in the Gulf and elsewhere.