"A coordinated armed and political struggle involving the use of two forces of revolutionary violence of the masses was the principal method used during the national democratic revolution in our country. But the revolution, being a long and complex struggle, is inevitably forced to overcome the various obstacles set up by the ruling circles to prevent it reaching its ultimate goal. These circles resort to repression, fraud, corruption and other means in their fight against the revolution. These obstacles cannot be overcome immediately. The revolution is there­fore compelled to change its methods."