Conversation so far:
What was Break with Bismarck?
The impetuous young Kaiser, says John C.
G.
Rohl, rejected Bismarck's "peaceful foreign policy" and instead plotted with senior generals.
Why did he reject?
to work "in favour of a war of aggression." Bismarck told an aide.
Are there any other interesting aspects about this article?
As the debate continued, Wilhelm became more and more interested in social problems, especially the treatment of mine workers.

Question: What kind of social problems?
Self-contained rewrite: What kind of social problems Wilhelm were interested in?