Lord Monarch is a real-time strategy war game by Nihon Falcom. The game is considered to be the seventh installment in the Dragon Slayer series. It was originally released in 1991 for the NEC PC-9801, ported 1992 to the Super Famicom and 1994 to the Sega Mega Drive. During 1997, Lord Monarch was remade for Windows as Lord Monarch Online and released for free in both Japanese, and for the first time, English.
Here´s gameplay video by greenraven22