Relive the history or create your own in a mod for Darkest Hour. From 1871 to Cold War, at your disposal will be countless of new units and provinces to use and conquer. Even events are in place to guide you and the World in one of the most bloodiest times of Human history.
Made this poster for one of the events by editing a RL one. Very close similarities are to Harry Turtledove TL-191 universe, where because of British support for CSA, USA allied with Imperial Germany during WW1 from which it adopted helmet designs. One of the best AH novel series over all.