Emperor: The Gates of Rome: A Novel of Julius Caesar (Emperor Series Book 1 by Conn Iggulden). This series chronicles Julius Caesar's life, which as you know, was rife with battles. Caesar was meticulous about writing down every detail of his battles, so the descriptions in the books are great!
https://www.amazon.com/gp/product/B000FBFMMK/ref=series_rw_dp_sw
The Emperor series. Really more about Julius Caesar's life and death, but the books are amazingly well-researched and detailed.
You might enjoy Conn Igguldens books:
Emperor series(It's about the life of Julius Caesar)
War of the Roses (takes place in the war with the same name wiki link)