Currently, complicated, rapid and unpredictable developments of the world and regional situation; difficulties and challenges of political, economic, cultural and social situation; the rapid development of information technology and digital ... are opportunities for hostile forces to intensify opposition and undermine the stability of the state and society of Vietnam. Misrepresentative and hostile views appear with many new levels and forms of expression from many different objects. This book was published to help the masses of people, officials and soldiers to better identify methods and tricks of propaganda and sabotage of hostile forces; objectives, tasks, solutions and effective methods of fighting against hostile forces in the current situation.