Freedom of control, influence and reliance of another nation. Independent nations are self governing and autonmous. They are also free from oppression from outside nations and have complete soverignty.
"In whatever may be the sources of her shame and misfortune, she has one source of great complacency; she lives proudly in the glory of her bravely won liberty and her blood bought independence, and no hostile foreign foot has been allowed to tread her scared soil in peace from the hour of her independence until now." --Fredrick Douglass lecture on Haiti (1893)
Albizu was the leader and president of the Puerto Rican Nationalist Party.He was also a advocate of Puerto Rican independence from the United States.