Miles Cameron is the author of The Traitor Son Cycle, which merges epic fantasy with intricate plotting and scathing action. The first book was The Red Knight. The second book, published this week by Orbit Books is The Fell Sword.
In the Traitor Son series, there are a great many battles. But battles, IMHO, are like murders in a good mystery novel. Each of them needs to take place in a context and the results have to have consequences. You can’t just have a battle to see how the magic sword works. Or the hero, for that matter.
And I have to admit that my writing of violence in a Fantasy setting is enormously complicated by having actually seen a war or two.