This book marks the 75th anniversary of the 1948 Hostage Case in which a US military tribunal in Nuremberg acquitted General Lothar Rendulic of devastating Northern Norway on account of his honest factual error. The volume critically reappraises the law and facts underlying his trial, the no second-guessing rule in customary international humanitarian law (IHL) that is named after the general himself, and the assessment of modern battlefield decisions.