A recent protest in New Zealand's Parliament in which lawmakers broke into a Haka—a traditional Maori dance—has attracted global attention. One might wonder, what egregious measure under protest warranted such a dramatic show of opposition?

A vote in New Zealand’s parliament was suspended and two lawmakers were ejected on Thursday when a ringing haka began – a rhythmic Māori chant of challenge – over a controversial bill redefining the country’s founding agreement between Indigenous Māori and the British Crown.

New Zealand’s parliament was briefly suspended on Thursday after Maori members staged a haka to disrupt the vote on a contentious bill that would reinterpret a 184-year-old treaty between the British and Indigenous Maori.