Tadeusz Andrzej Kosciuszko was a Polish-Lithuanian military leader and national hero. He played a significant role in the American Revolutionary War, where he served as a military engineer and helped fortify the defenses at West Point. Kosciuszko also fought for the independence of Poland and Lithuania, leading an uprising against foreign powers. He is remembered for his bravery, strategic military skills, and dedication to the cause of freedom. Kosciuszko's legacy lives on as a symbol of patriotism and resistance against oppression.