"As the Great War of 1883 ignited, the Czar, in need of funds sold Alaska to the nefarious Professor Nightshade in return for his cutting edge technology. This, of course, upset the British who were already at war with Russia, but also angered the U.S., who had been not only eyeing the territory for themselves, but had personal scores to settle with the evil genius.
America soon joined the war after one of their frigates was sunk by a submersible of unknown origin. It was obviously another one of Nightshade's contractions. As a show of faith in the new cause, the U.S. dispatched an American Expeditionary Force to France to aid their new allies in a push into German occupied France."
French and American contraptions fired round after round into Nightshades enormous Steam Walker. Finally one shot crippled, but didn't destroy it. It blazed away with it's main gun, knocking out the French Roue.
Russinas troops trying a "straight up the middle" approach were cut to ribbons by the American Mobile MG Emplacement, and forced to flee. French Marines took the woods opposite the Rokkittruppen and began a fire-fight that lasted most of the game. It finally took a well placed shot from the French Spyder to break the German sky soldiers.
It was right after this small victory that things fell apart for the French and Americans. Within a few turns, all of their armored contraptions were knocked out. With no way to knock out the beats on the other side, they decided to withdraw. What started as a fairly balanced fight, turned into a crushing victory for Nightshade and his pawns.