After the onset of spring, the haze of gunpowder blanketed the Eastern European battlefield once again. After a winter of preparation, the situation had greatly changed.
The Berlin Government had organized the populace to construct a multitude of castle fortresses along the border regions, restricting the movements of the Cossack cavalry. To pillage wealth, they would now need to siege these castle fortresses.
The combat effectiveness of the Cossack cavalry was built on interest. As the populace became prepared, the difficulty of looting continuously increased, and often the casualties were disproportionate to the spoils, which in turn dampened the enthusiasm of the Cossack cavalry.
There is a stark difference between proactive and reactive in the combat power that's unleashed.