...: Expansion - Europa Universalis 4: The Cossacks

The story of the expansion for Europa Universalis IV centers on the shifting power dynamics of the steppes and the internal struggle for control between a monarch and their subjects. It captures the era when the Great Horde began to fracture and the rising powers of Eastern Europe—most notably Muscovy and Poland-Lithuania—sought to tame the wild frontiers. The Rise of the Estate

By settling these warriors on your frontiers, you gain access to elite cavalry and rapid expansion capabilities. Expansion - Europa Universalis 4: The Cossacks ...

They are notoriously difficult to control. Their story is one of dual identity: they are your most loyal defenders against the "heathen" hordes, yet they are always one perceived slight away from declaring their own independent "Sich" and turning their blades against their former masters. Diplomatic Web The story of the expansion for Europa Universalis

The "story" is most vivid in the borderlands of the East. The emerge as a unique military caste—independent, fierce, and vital for defense. They are notoriously difficult to control