Koopa Kingdom

The Koopa Kingdom is a kingdom that is constantly captures Peach and is ruled by King Bowser Koopa and the castle is constantly moved.

History
Kip Toadstool didn't like that the koopa family were the only people who could be rulers so The Star Kingdom split into The Mushroom Kingdom and The Koopa Kingdom. And then The Koopa Kingdom became enemies with The Mushroom Kingdom

Military
The Koopa Troop (TKT) is the Military of The Koopa Kingdom and is led by Bowser Junior and they commonly kidnap Peach on foot or in Bowser's Airship.

Capital
The Capital of The Koopa Kingdom is Koopa Kastle which normally is at the entrance of the darkland but is moved a lot.