Valentyn was born in Ukraine and grew up under the oppressive policies of the Communist regime. It is against this backdrop that Valentyn became a freedom-fighter and used the power of the pen to express his anti-Communist views. However, when the Nazis took over he found himself fighting against two fronts. He established himself as one of the leaders of the Ukrainian underground nationalist movement. After being arrested and surviving the holocaust, he immigrated to America in 1950 and continued his work. He became the editor of a publication called, "Mission of Ukraine," which was a division of the "Association for the Liberation of Ukraine," and was also active in a group called, Americans to Free Captive Nations." His passion for freedom never abated even until his death in 1989.