Battle at the Eastern Border
Months had passed and while wars waged in Bohemia, and North Africa, Eastern Europe was far from peaceful. Seeing that the Rus and the Golden Horde had begun to invade the Teutonic State, the Polish-Lithuanian Commonwealth decided to avenge their loss at Grunwald and had joined the fray.
After their defeat in Grunwald and the increase in the Teutonic State's power, the Kingdom of Poland and the Grand Duchy of Lithuania had unified into the Polish-Lithuanian Commonwealth decades earlier than in Berengar's previous life.
The reason for this was simple, the Teutonic State was a growing threat, and by uniting their two countries they could gain an advantage against their common foe. As such the Teutonic State found itself surrounded by hostile forces, all of them held considerable power.