Conversation so far:
What were Sven Hedin's political views?
Hedin was a monarchist.
Where was Sven Hedin from?
Sven Hedin was born in Stockholm, Sweden.
What else is interesting about Sven Hedin's political views?
From 1905 onwards he took a stand against the move toward democracy in his Swedish homeland.
Who did Sven Hedin support in World War I?
In World War I he specifically allied himself in his publications with the German monarchy and its conduct of the war.

Question: why did he start supporting Germany?
Self-contained rewrite: Why did Sven Hedin start supporting Germany in both World Wars?