A series of fun, straight-forward strategy games. Until the Game Boy Advance versions they were only released in Japanese, but there are fan-translations for those now.
The character designer for Advance Wars 1,2,DS is Ryo Hirata,
Game was only released via the Nintendo Power cart writer. It's a bit bare-bones, no story mode.
The pre-game options aren't explained in-game:
Directly inspired by the Wars games: