That was a good haka. The haka in this incidence is honouring the Ukrainian soldiers that our guys have trained. Haka can be used for a variety of things; as an honour and show of respect, as in this case; as a challenge; as a way to determine if a visitor is a friend or a foe; as an expression of pride in another's achievement; and as a celebration. The words of the haka are important and usually tell a story etc. In the old days they were done before a battle in an attempt to intimidate the enemy. After the battle, more often than not the winners ate the losers and / or took them into slavery. Old day battles between Maori were very personal with it ll being hand to hand and projectile weapons were used until the arrival of the Europeans and Americans with muskets. Once my ancestors got their hands on muskets it all changed and much slaughter ensued. One of my ancestors was on a raid where they took 1,000 prisoners alive, ate 300 with the remainder being enslaved.