Hearts of Iron Darkest Hour: Kaiserreich.
Exiled French gov has become the Kingdom of France and after the second weltkrieg, a new Kingdom of France was created from the former Commune de France, that was partitioned along with FAI and Carlist Spain.
Prior to the Second Weltkrieg, war erupted between Austria, Romania and Poland vs Hungary, Galicia and Germany after Hungary refused centralization in late February 37.
After the war, Hungary seized Croatia/slavonia and they actually believed they could resist, of course they were pwned. Nearly 5 years on, the Union of Britain have survived any attempted invasion and is the leader of the International.
Romania is currently annexed but is being induistrialized for the time when it is given independence again, so it won´t be too weak an allie.
I have tweaked the population of Paris and other major cities, Chicago, New York, Atlanta, New Orlean, Berlin, Stockholm, Lyon, London, Helsinki, Vienna, Moscow, Milan (not sure), Petrograd and 2 other cities in startgame Russia to something in accordance to geography.