The US struck military sites on Kharg Island, from which Iran exports almost all its oil, for the first time overnight, upping the ante in a Middle East war that’s raged for more than two weeks and shows little sign of easing.Iran reacted by warning it will target American-linked oil and energy facilities in the Middle East if its own petroleum infrastructure is attacked, with Iranian media saying all oil-industry workers on the island are safe and unharmed. The strike has raised fears of more oil and natural gas supply disruptions in the region, with Brent crude closing above $100 a barrel and Iran threatening to retaliate if its energy assets are hit.Iranian media said all oil-industry workers on the island, which sits about 25 kilometers (16 miles) off the mainland, are safe and unharmed. How should Iran respond?

