(Russian title: Ledokol, Ледокол) is a history book by Viktor Suvorov. According to the book, Stalin planned a conquest of Europe for many years and was preparing to launch a surprise attack of Nazi Germany at the end of summer of 1941, and the Operation Barbarossa was, therefore, a preemptive strike by Hitler. This thesis received a relatively wide public support in some post-Soviet and Central European states, but little support among Western scholars.