From the perspective of international trade, this game represents the pre-World War I era. International trade emerged, and I see it represented in this game for several reasons, the most important of which is the occupation of other countries in order to control raw materials and dispose of the surplus in other markets. In this game, you can benefit from history and build on it in the absence of monetary and financial policies governing this world or entities supporting international trade. Create alliances and economic blocs and occupy more lands. This is the essential rule here.