Conversation so far:
Is there anything interesting about Erich Ludendorff's Pre-war military career?
In 1885, Ludendorff was commissioned as a subaltern into the 57th Infantry Regiment, then at Wesel.
Where was he based after that?
Over the next eight years, he was promoted to lieutenant and saw further service in the 2nd Marine Battalion, based at Kiel and Wilhelmshaven.
What was his highest rank?
He rose rapidly and was a senior staff officer at the headquarters of V Corps from 1902 to 1904.
Did he go to school for military?
CANNOTANSWER.
What did he do after 1904?
In 1913 funding was approved for four additional corps but Ludendorff was transferred to regimental duties as commander of the 39th (Lower Rhine) Fusiliers.
Did he do anything worth mentioning while a commander?
"he became the perfect regimental commander ...
the younger officers came to adore him." His adjutant, Wilhelm Breucker, became a devoted lifelong friend.
Did he do anything confrontational during his pre-war military career?
Members of the General Staff were instructed to keep out of politics and the public eye, but Ludendorff shrugged off such restrictions.

Question: Who did he work with?
Self-contained rewrite: Who did Erich Ludendorff work with?