What's Happening in the Persian Gulf Explained

Iran and the United States appear to be heading for a showdown in the Persian Gulf. Amid already-high tensions over Iran's advancing nuclear program, the US has imposed harsh new economic sanctions on the regime in Tehran. The sanctions have throttled Iran's economy, and the country has responded by threatening to shut down the Gulf to all shipping traffic. Iranian officials have also threatened military action against the United States and its allies in the region if they don't back off. Two US aircraft carriers are en route to the region.

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