What is a naval blockade and how would it work in Strait of Hormuz?

What is a naval blockade and how would it work in Strait of Hormuz?50 minutes agoShareSaveAdd as preferred on GoogleGeorge WrightandRachel Clun,Business reporterAFP via Getty ImagesUS President Donald Trump says that the US is going to start blockading the Strait of Hormuz after talks with Iran failed to reach a deal to end the war.Iran has in effect closed the strait, a vital shipping route through which roughly 20% of the world's oil and gas passes, as a key element of its war strategy.Trump said direct talks with Iran in Pakistan failed because "Iran is unwilling to give up its nuclear ambitions".Iran's foreign ministry spokesman criticised the US's "excessive demands and unlawful requests". Iran's parliamentary speaker Mohammad Bagher Ghalibaf, who led Iran's negotiating team, wrote that "the opposing side ultimately failed to gain the trust of the Iranian delegation in this round of negotiations".After Iran talks falter, the big question is what happens next?What has Trump said about the blockade?Posting to Truth Social on Sunday, Trump said that the US is going to start "BLOCKADING any and all Ships trying to enter, or leave, the Strait of Hormuz"."I have also instructed our Navy to seek and interdict every vessel in International Waters that has paid a toll to Iran. No one who pays an illegal toll will have safe passage on the high seas," Trump said.He added that the US will also begin destroying the mines he said Iran has laid in the strait."Any Iranian who fires at us, or at peaceful vessels, will be BLOWN TO HELL!" he continued.Trump said that "at some point" an agreement on free passage will be reached, but "Iran has not allowed that to happen by merely saying, 'There may be a mine out there somewhere,' that nobody knows about but them".He added in another post that "Iran promised to open the Strait of Hormuz, and they knowingly failed t...