This month I read "Carthage Must Be Destroyed" (https://www.goodreads.com/book/show/10133950-carthage-must-b...), which dives deep into Hannibal's war against Rome (and the other punic wars).

I highly recommend reading about what happened from the Carthaginian perspective instead of the typical Roman perspective.

There's also some elaboration on the usage of elephants, the feasibility of of this, and how ultimately ineffective it was for war. (It was great for scaring the enemy, but the issue is they indiscriminately hurt both armies).