The commandos have not been assigned specific roles. But President Trump has expressed concern about the now-closed Strait of Hormuz and Iran’s store of enriched uranium.

The arrival of 2,500 Marines and another 2,500 sailors is keeping the number of American troops in the region at roughly 10,000 more than usual.

Here's why our reporting on Fort Bragg troop deployments doesn't violate operational security, plus other stories in the news this week.