This book provides a comprehensive and lucid survey of all aspects of contemporary warfare, covering political, military and technical issues. It discusses strategic nuclear war, examines the role and importance of conventional land war and analyses the use and effectiveness of action at sea and in the air. The author also deals with guerrilla warfare and terrorism. Separate chapters cover SDI, disarmament and nuclear strategies in the United States and the Soviet Union. The book requires no previous background in strategic studies or international relations.