The Bohemian - Bochnian - Polish War, year 811 a.d.
In the early part of 811 A.D., a diplomat from Bohemia arrived in Bochnia to try to diplomicize the heathens of that region. Unbeknownst to him, there was an order from the king that the only diplomats that were to be admitted were to be a kingdoms ruler or heir.
The diplomat, Lieutenant Alois, was slain.
In the fall of 811 A.D. Bohemia responded with an invasion of 15,500 troops of varying types. Unfortunately, for the Bohemians, they met an overwhelming defending force of over 62,000 troops.
There had been numerous rumors that Bochnia had been massing for an attack on Poland. Although courageous and valiant in trying to help defend their fellow christians, the Bohemians were clearly outmatched. Before the first winter snows fell, the entire Bohemian army was annihilated. Rumors persist that the Bohemian king was captured and is now being ransomed to the Bohemians.
After swatting away that minor annoyance, the heathens then turned their eyes to Poland. After leaving a small force to defend their homeland, they marched on Little Poland (a region just south of Poland), with a force of just over 54,000 troops of various types, including mercenaries.
The Poles had decided at this point to take the Bochnians seriously. They met them at the border, not with troops, but with the heir to the throne of Poland. Supported by 3 other minor (but able) diplomats they were able to dissuade Wulfgar, the Bochnian Prince, from attacking them.
Although not agreeing to a full normalization of relations, the Bochnians retreated to their kingdom. They even released a polish diplomat (and his staff) that had been held (and previously reported dead).