Colonialism and Feudal taxation

During WWII and pre war, most countries had colonies in Asia, Africa, and Americas. Such colonies used to give tax in form of resources and military to their governances. Such systems can be added to the game. If a country- say UK, starts a war with other say Egypt and starts winning, Both the countries can accept a position in which Egypt becomes a colony of UK. Now Egypt gives a regular daily tax to UK and a right of way to UK. Or Shared map. This will improve dignity of both countries. The process of colonization can be reflected in the newspaper publically.