Phan Bội Châu
Following the signing of the Molotov–Ribbentrop Pact and the outbreak of World War II, the amicable relations between France and the Soviet Union were severed, leading France to undertake a repression of any seditious factions in Vietnam - sentencing Nguyễn An Ninh to 5 years in Côn Đảo Prison. During the war, Phan Bội Châu and Nguyễn An Ninh both died in captivity, bringing a definitive end to the leadership of the Vietnamese anarchist movement.