Washington is maintaining a blockade of Iran's ports in a bid to pressure Iran to make a deal to end the war that the US and Israel launched on February 28. Trump, on April 8, declared a ceasefire with Iran that he has since extended, even though negotiations with Tehran have been at a standstill.

Vessels have been largely unable to pass through the Strait of Hormuz for months, disrupting key supply chains.

What does the operation entail and could it lead to a resumption of hostilities?