The armed group, based in Yemen and backed by Iran, said it had launched missiles near the vital maritime trade route, in a conflict that shows no sign of abating.
President Trump said a cease-fire agreed in June would lead to limits on Iran’s nuclear program and finish the conflict, but the countries appear far apart.
Ayatollah Mojtaba Khamenei’s appointment of hard-line loyalists to top jobs suggests he is prepared to keep the country on a war footing and to quash domestic dissent.