Before France takes on New Zealand in the opening game of the Rugby World Cup, it will have to face the ferocious challenge laid down by the All Blacks in the haka.

"In a rugby game, if you want victory, you have to come and get it — it's either you or us," said Dr. Taku Parai, an elder from the Ngati Toa iwi Maori tribe.

The haka is a fierce war dance that was originally used to prepare Maori warriors for battle and has since been adopted by the All Blacks, who perform one of two versions — the Kapa O Pango, created for the All Blacks and first performed in 2005, or the traditional Ka Mate, by far the best known — before games.