The British used the standard British Army muskets and artillery cannons. The Maori used trade muskets, shotguns and tomahawks.
Mainly a variety of short blade-shaped one-handed clubs and long blade-shaped two-handed clubs. After European contact muskets were readily adopted and in the New Zealand Wars Maori used muskets, shotguns and tomahawks.
Clubs
The battle of Rangiriri was a part of the maori land wars between the english+ New Zealand company and the Maori people.
wars
Yes, so far the only one used was in wwII.
Spears, bows, swords, slings, catapults and elephants.
Bows and Arrows, Spears, Shields, and Swords
Because today, people have much more greater ideas and know how they can improve weapons.
The list of weapons used in both wars are very extensive. I have included links which will give you a good idea of the types of planes, ships, vehicles, small arms, artillery and other armament were used in both wars.
Just WW2, they have never since been used in war.
The British Empire, hence the flag and the law of the queen. For the Maori it was a case of winning most of the battles but losing the wars. Despite creating strategies and tactics that would revolutionise how wars were fought all over the world, it was a case of "always outnumbered, always outgunned" for Maori.
Fight wars without the use of nuclear weapons; limited wars.