Mongols first invasion of Germany located in the Great European Plain, part of the Kingdom of Bohemia and the farthest west they had successfully launched a raid in the Mongol advance of Europe. The united Polish and German Forces were annihilated in the battle of Legnica by a Mongol reconnaissance party led by Orda Khan. Orda Khan was solely responsible for the complete destruction of the Kingdom of Poland, preventing Wenceslaus I of Bohemia from using its army to form a large coalition with Henry II the Pious. Orda Khan spread absolute fear and destruction in Central and Eastern Europe, to further divide and conquer European forces.