I read all about Prussia recently, the most major part being about Frederick the Great and the empire during that time. He was a renowned and admired leader throughout Europe during his time and admired equally by future leaders of Europe (Napoleon, Hitler) for his skill on the battlefield and the miracle of him defeating 3 major nations in Austria, France, and Russia in the Third Silessian War. He was able to do this through key battles like Rossbach and Leuthen, along with some luck with the new Tsar having a crush on him.
But when you look into what actually was the cause of these victories, Frederick becomes much more human. For example, when he was very young and first starting out, in the BATTLE OF MOLLWITZ, he was sent off the battlefield by a trusted general because he was incompetent. That general turned the battle around and won the engagement. After this, Frederick vowed to never leave the battlefield again. And then he proceeded to leave the battlefield TWICE again in two separate battles, the Battle of Lobositz and one other that escapes my memory. His generals proceeded to win him both those battles, just like Mollwitz. If you read through, each battle, it will become apparent the common theme of great generals under his command. Frederick did have great moments like Rossbach and Leuthen, but even then his generals had independent actions executed greatly.
This military professionalness was setup by his father, so is Frederick just an average ruler who benefited having great generals and being set up by his father? Or did he turn his father's development of the military into the fighting force it was?
Source: reddit post