def sort_nation(nation):
    """
    Receive nation and return the corresponding order as int
    """
    order_dict = {
        "usa": 1,
        "japan": 2,
        "ussr": 3,
        "germany": 4,
        "uk": 5,
        "poland": 6,
        "pan_asia": 7,
        "france": 8,
        "italy": 9,
        "commonwealth": 10,
        "pan_america": 11
    }
    return order_dict.get(nation, 12)