We've got your official Pokemon Conquest trailer from E3 2012 right here.
Pokemon Conquest is an entirely new take on the Pokemon franchise. Instead of wandering the wilderness trying to catch all of them (wait, that doesn't sound right), players will become a warlord and use their Pokemon to conquer surrounding kingdoms.
The battle system is set up more like Final Fantasy than Pokemon. As you travel through the Ransei Region with your Eevee, you will meet and befriend many different warlords and gain access to their Pokemon and their powers, as you attempt to conquer the region and unite the kingdoms.
Pokemon Conquest comes out June 18.