What is the book icebreaker about?

"Icebreaker" can refer to multiple books, but one notable work is "Icebreaker: Who Started the Second World War?" by Viktor Suvorov. In this book, Suvorov presents a controversial theory that suggests the Soviet Union was planning a massive military invasion of Nazi Germany and its allies in 1941 before Germany launched its invasion of the Soviet Union. Suvorov argues that Stalin was preparing to attack Hitler but was preempted by Operation Barbarossa, Germany's surprise attack on the Soviet Union. The book challenges traditional interpretations of the events leading up to World War II and offers a provocative perspective on the motivations and strategies of the major powers involved.