Yeah, there's a lot more to history. Most good history books, even if they're focusing on something like war, are going to talk about the politics, economics, technology and infrastructure/logistics of the situation. Those questions are usually more important than the war itself b/c the cause of the war and the resolution are tied up in those factors.

If you look at something like Ukraine's fight today, the explanation for tactics are intricately tied to global supply and politics. Why Russia lost so many tanks has to do with their politics and economic situation. You need to have some idea of those things to understand what is going on and it's no different in the past.