Thaddeus Kosciuszko was a Polish-Lithuanian military engineer and a key figure in the American Revolutionary War. Born on February 4, 1746, in Poland, he played a significant role in designing fortifications and military strategies for the Continental Army. His expertise helped secure important victories against British forces. After the war, Kosciuszko returned to Poland, where he became a national hero for his efforts in the struggle for Polish independence. He led the Kosciuszko Uprising in 1794, aiming to liberate Poland from foreign domination. Kosciuszko's legacy is celebrated in both Poland and the United States for his contributions to freedom and democracy.