Park Sang Hak is a North Korean democracy activist. Hak worked at a propaganda unit of the Kim Il Sung Socialist Youth League until 1999, when his father, a spy for the government, urged the family to defect to South Korea. Since then, Hak has been laboring for the democratization of his homeland. He is the chairman of Fighters for a Free North Korea, whose activities include the launching of nearly 2 million balloons containing human rights and pro-democracy literature into North Korea. He is also a member of the Democracy Network Against the North Korean Gulag and the Exile Committee for North Korean Democracy.