Conversation so far:
Is there anything interesting about Erich Ludendorff's Pre-war military career?
In 1885, Erich Ludendorff was commissioned as a subaltern into the 57th Infantry Regiment, then at Wesel.
Where was Erich Ludendorff based after that Wesel with the 57th Infantry Regiment as a subaltern?
Erich Ludendorff was promoted to lieutenant and saw further service in the 2nd Marine Battalion, based at Kiel and Wilhelmshaven.
What was Erich Ludendorff highest rank?
Erich Ludendorff reached General of the Infantry.
Did Erich Ludendorff go to school for military?
Erich Ludendorff was consistently first in his class at Cadet School, which produced many well-trained German officers. Ludendorff's education continued at the Hauptkadettenschule at near Berlin through 1882.

Question: What did he do after 1904?
Self-contained rewrite: What did Erich Ludendorff do after 1904?