Set in a fictitious continent reminiscent of the 1930s, Valkyria Chronicles depicts Europe divided in two and ruled by two super powers: the Empire and the Federation. The Empire has set its sights on invading a small neutral country called Gallia, situated in the middle of the two superpowers territories, in an attempt to secure invaluable natural resources. Within this struggle a hero named Welkin, and his fellow soldiers of the Federation's 7th Platoon, are fighting back against the invasion and the Empires attempts to unify the continent under its power.