During this campaign, St. Czeslaw allegedly saved the city of Breslau by summoning a giant fireball.
During this campaign, St. Czeslaw allegedly saved the city of Breslau by summoning a giant fireball. One battle during this campaign saw the death of Duke Henry the Pious. The pretext for this military campaign was the refuge given to Koten, leader of the Cumans. The main battle of this campaign saw the successful use of catapults to disperse harassing crossbowmen, considered a breakthrough in artillery tactics. That battle ended with knights forced to retreat into a swamp to escape a double envelopment, where many were bogged down and killed. In one of the target countries, this campaign marked the start of a period called the "tatarjaros", which saw the capital moved from Szekesfehervar to the more defensible Buda. After the battles of Legnica and Mohi ended in victory for general Subotai, this campaign ended because of a kurultai caused by the death of Ogedei. For 10 points, name this 1241 campaign in which Batu Khan invaded the continent west of Asia.
During this campaign, St. Czeslaw allegedly saved the city of Breslau by summoning a giant fireball.
Mongol Invasion of Europe [accept Mongol Invasion of Poland and Hungary; prompt on "Tatarjaros" before mention]