Unilateral declaration of ‘free navigation’ in the name of security costs Existing position and arrangement Iran maritime blockade resumed in the early morning of the 15th US President Donald Trump announced that he would resume the maritime blockade against Iran and impose a transit fee of 20% of the cargo transported on ships passing through the Strait of Hormuz. This runs counter to the existing position of the United States, which has criticized Iran's plan to collect passage fees and advocated free navigation. The U.S. military uses maritime drones for the first time...