Valkyria Chronicles is a tactical RPG by Sega for PS3 and PC.
Set in Europa, similarly to Europe during World War II & the 1930's. The abundance of Ragnite ore has caused the neutral nation of Gallia to come under attack from the Empire; who is currently at war with the Federation. Soldiers of the Federation's 7th Platoon are fighting back to unify the continent under its power.
Valkyria Chronicles has an epic storyline, beautiful graphics engine, a great gameplay system, and loaded with tons of customization. The immersible environments are stunning to boot.