Why is the US attacking southern Iran’s civilian infrastructure?

The United States has expanded its military campaign against Iran, conducting a sixth consecutive night of attacks that Tehran claims have targeted civilian infrastructure. Iranian officials report strikes on railway stations, residential areas, bridges, water facilities, and food silos, particularly in southern Iran's Hormozgan province, with Bandar Abbas being among the hardest-hit cities. These attacks follow US President Donald Trump's statement about eventually targeting Iran's energy sector and coincide with escalating tensions over the Strait of Hormuz, where both sides have imposed naval blockades. Iran accuses the US of war crimes, citing the human toll and strikes on "vital infrastructure," while the US maintains its operations target Iranian military capabilities to protect shipping. Experts suggest the strikes aim to degrade military logistics and increase economic pressure, with some targets potentially being "dual-use" infrastructure.