 In 1946, when he traveled outside of the country, his subordinates imprisoned 2,500 non-Communist nationalists and forced 6,000 others to flee.Hundreds of political opponents were jailed or exiled in July 1946, notably members of the Nationalist Party of Vietnam and the Dai Viet National Party after a failed attempt to raise a coup against the Viet Minh government.All rival political parties were hereafter banned and local governments were purged to minimize opposition later on.