Washington, April 24 -- US military officials are quietly drawing up new strike plans targeting Iran's presence in the Strait of Hormuz, should the current ceasefire collapse, media reports said on FridayThe plans represent a significant shift in focus -- the first month of bombing largely concentrated on targets deeper inside Iran, the new options zero in on the waterways themselves. Central to the planning is what officials call "dynamic targeting": going after Iran's small fast-attack boats, minelaying vessels, and other nimble assets that have allowed Tehran to effectively choke off the Strait of Hormuz, the southern Arabian Gulf, and the Gulf of Oman.

Iran's closure of the strait has sent shockwaves through the global economy and comp...