You're asking a question that requires both broad and detailed understanding of a couple of hundred years of military history, which perhaps explains why it's taking a while to generate fresh answers.

While you're waiting, you may find it interesting to review some previous responses, particularly...

What specific battle tactics did Napoleon employ for people to consider him a military mastermind?, with u/dandan_noodles (a fabulous response which was runner up in the post of the year contest for 2017)

Was Frederick the Great really that good?, with u/DonaldFDraper

Just how important was Gustavus Adolphus in military history? What were his major innovations in the art of war? with u/vonadler