This is a conversion of a tabletop. As one of 7 Powers in a Europe divided in regions on the dawn of the 20th century you try to conquer as much as possible with your allies' help.
The rules have been adopted completely. The main point of them is that nothing happens by accident but everything can be calculated logically before. That means that nobody can use the excuse of luck/bad luck. Instead of that the attacking armies are compared to the defending ones. The one who has more wins. But more than one unit per area is impossible. In order to build a front line neighbouring countries have to support others.