This work investigates the potential scenarios and catastrophic consequences of nuclear conflict in the late 20th century. Nigel Calder, a science writer, synthesizes technical data regarding nuclear arsenals and military doctrine to argue that the risk of accidental or intentional nuclear war remains a persistent threat to global stability. The text utilizes expert interviews and strategic analysis to map out how geopolitical tensions could escalate into a full-scale nuclear exchange.

Experts recognize this text as a significant contribution to the public understanding of nuclear strategy during the 1970s. Readers frequently note the accessible yet sobering tone of the prose, which effectively translates complex military theory for a general audience.