From Siliconera- Have you heard of Hills and Rivers Remain? It's a mobile phone game where you order a group of units to take over towns. Items like hold, speed, defense, and shield orbs can boost your forces and protect conquered land.
Hills and Rivers Remain isn't a full blown strategy RPG. It's more like a mix of tower defense and the world map from Dragon Force where units automatically invade towns. Even though it's just a cell phone game, Square Enix included a story mode where you lead Alan and his army to victory. Beyond story mode there is a free play mode and a downloadable maps.