i already answerd this In 1884–5 the Scramble for Africa was at full speed. Thirteen European countries and the United States met in Berlin to agree the rules of African colonisation. From 1884 to 1914 the continent was in conflict as these countries took territory and power from existing African states and peoples.
The size of the country. the soviet union had immediate access to resources, the germans couldn’t stretch their resources as far as they had come. add on the cold, the germans had quite the hard time