Bangladesh, July 10 -- The US military attacked Iran early Wednesday (Jul. 8) after it said Tehran struck three ships in the Strait of Hormuz, part of an American effort that also revoked the Islamic Republic's ability to openly sell crude oil in the world market. Iran immediately warned Washington it would "take whatever measures it deems necessary," raising the risks that an interim agreement in the war halting fighting could break down, putting the wider Middle East again at risk of a wider conflict.

Bahrain, home to the US Navy's 5th Fleet, sounded its missile alert sirens Wednesday morning after the American attack on Iran. The attacks on shipping and the resulting strikes on Iran came during the dayslong funeral for Iran's Supreme...