Throughout history, intoxicants were an important part of the war experience. The First World War was by no means an exception in that respect: its main "war drugs" were alcohol (mostly beer, brandy, rum, schnapps, wine, and vodka), morphine, and cocaine. These were both "prescribed" by military authorities and "self-prescribed" by soldiers. As in the past, the reasons for using drugs varied: from purely medical (killing the pain, anesthetizing, and energizing) to performance enhancement, from raising the fighting spirit to alleviating combat trauma, from strengthening bonds between companions to mitigating the fear of battle. Simultaneously and paradoxically, in many states temperance ideas gained in popularity and prohibitionist regulations were adopted