John, On what do you base your guarantee against which you mark your words? Iran is all bark and no bite. Their navy is no match for the US' regional 5th flee, much less the entire naval fleet. Moreover, Iran's air force is in total disrepair and has no ability to provide any sort of effective air cover, so the US could destroy the Iranian collection of 20+ year old trawlers and fishing vessels they call their navy with planes and drones without even engaging with ships (real ships...) Mark my words: Iran is bluffing. If Iran chooses to commit naval suicide and actually attempt a blockade, they will be destroyed within six hours at most. Oh yeah, your grammar is atrocious as well...
Australia's most dangerous Islamic State operative killed in U.S. strike (AP)
from the article: Iran official: U.S. cannot stop us from cutting off world oil supply