Germany's aggressive campaigns of conquest ensured that her armies would fight in many countries far from the fatherland and in starkly contrasting terrain and weather conditions. German soldiers were well-equipped for their venture into Europe, and later North Africa, but found themselves ill-prepared for the bleak, freezing and unforgiving Eastern Front. When the Russian armies failed to collapse, the Wehrmacht found itself caught out on the Russian plains, freezing, literally in many cases, to death.
