Task: Text Categorization
Input (English): In this conflict, Christian of Anhalt's forces were defeated at the Battle of White Mountain, marking the end of the "Bohemian" period of this war. The Holy Roman Emperor Ferdinand II tried to retroactively enforce the Peace of Augsburg and replace Protestant leaders in German states with Catholic leaders during this war. Although the Protestant forces were victorious at the battle of Lutzen in this conflict, they lost their leader, Gustavus II Adolphus of Sweden. For 10 points, identify this war that was ended by the Peace of Westphalia and lasted from 1618 to 1648.
Output (English): History