The U.S. military destroyed ten Iranian mine-laying naval vessels on Tuesday amid concerns that Iran is preparing to deploy mines in the Strait of Hormuz, President Trump said. Why it matters: A senior U.S. official told Axios the strike on the inactive ships was a preemptive measure that was a result of intelligence about Iran's operational plans.Iran's deployment of mines would create an extreme threat for commercial shipping in the region and prevent any oil from leaving through the Strait. A...