At the beginning of World War I, Paderewski founded a committee to assist the people of Poland and established branches in Paris, London and throughout the United States.
Paderewski's efforts, with support from the American government and American people, helped Poland regain her freedom after World War I. He was also one of the signers of the Paris Peace Treaty which was responsible for reestablishing the proper boundaries between Poland and her neighbors. Paderewski became the chief framer of the Polish Constitution of 1919 and served as Poland's delegate to the League of Nations in Geneva. Upon Poland's Independence, in 1918, Paderewski became its Prime Minister and Secretary of Foreign Affairs.
Paderewski became ill during a mission to the United States while requesting additional support for Poland against Hitler's Nazi invaders. He died in New York City on June 29, 1941, and his body was interred in Arlington Cemetery, near Washington D.C.
It was Paderewski's wish to be reburied in Poland when his homeland was again free.
This wish became a reality on June 28, 1992, when his body was returned to Poland and laid to final rest with full honors from the American and free Polish government.
There are hundreds of organizations around the world named after Ignacy Jan Paderewski to honor his life and efforts on behalf of the Polish people.