Career
In the 1970s, he founded the Catholic Priests Association for Justice in opposition to the South Korean dictatorships that had killed pro-democracy activists. Since the 1980s, he has been a leading voice against the United States. military presence in South of Korea. In 2012, he was awarded the In 1976, he was jailed along with future president Kim Dae-jung.
In 1986, he joined rallies and hunger strikes supporting the establishment of a democratic constitution.
He also began a hunger strike one block from the United States. Embassy in Seoul. The expansion tripled the base in size and forced a number of residents from their home villages.
In 2005, a warrant was issued for his arrest following a large protest that led to clashes between demonstrators and riot police. In April 2012, he fell from a concrete tetrapod during a protest, fracturing several vertebrae.