US expands attacks on Iran, which calls Strait of Hormuz a 'red line' as it retaliates

United States intensified strikes against Iran, hitting targets farther north. Iran retaliated with missiles and drones at US allies in the region. The interim ceasefire collapsed, leading to days of back-and-forth attacks. US strikes reached areas around Iran's capital, Tehran, widening targets. The US reimposed a naval blockade on Iranian ports Wednesday.