Could NZ be dragged into a war over the Strait of Hormuz?

Iran has vowed to close the Strait of Hormuz indefinitely -- if the US follows through on President Donald Trump's threats.

It's after Trump gave Iran an ultimatum to open the passage before American forces "obliterate" their power plants.

But, if that happens, there'd be a large-scale blackout, resulting in widespread civilian harm - so, the question then becomes - would that be a violation of international law?

Today on The Front Page, Waikato University international law professor, Al Gillespie, is with us to take us through what could happen next.

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