Could Iran use ‘kamikaze dolphins’ against the US in the Strait of Hormuz? As US-Iran tensions escalate around the Strait of Hormuz, a journalist at a Pentagon briefing this week asked top US officials an out-of-the ordinary question: whether Tehran could deploy “kamikaze dolphins” against US warships. The idea isn’t as far-fetched as it seems, as multiple countries have a history of using marine mammals for military uses.