Complex sentence: Tuchman cynically notes that Joffre later took complete credit for saving Paris and the French army--after having the commander who ordered the tactical retreat, Charles Lanrezac, relieved of duty and the older commander and his former superior, Joseph Gallieni, pushed back into obscurity.
Split into simpler sentences: Tuchman cynically notes that Joffre later took complete credit for saving Paris and the French army. After having the commander who ordered the tactical retreat, Lanrezac, relieved of duty and the older commander and his former superior, Gallieni, pushed back into obscurity.