America and Britain justify attack on Yemen, Houthis vow to respond. Yemen hit by US-British bombardment over preventing Israeli ships from sailing in Red Sea. Yemen Deputy Minister Hussein al-Ezzi vowed to respond to a large-scale attack from American and British ships, submarines and warplanes. Most recently, the Houthis targeted "an American ship that was providing support to Israel," using more than 20 drones and missiles over the Red Sea, allegedly shot down by US and British forces.