Why Did God Favor France?

Everything in the story sounds like a pious legend confabulated centuries after the fact. A peasant girl with zero political or military experience shows up at a royal court, announces a divine mission and makes a series of prophecies about what God wants for France that she consistently fulfills — a fulfillment that requires not merely some fortunate happenstance, but her taking command of a medieval army and winning an immediate series of victories over an intimidating adversary with Alexandrine or Napoleonic skill.