The Brigadier Gerard stories, set in the Napoleonic Wars, are a great read as well. (There is no relation between Sir Arthur Conan Doyle’s Brigadier Gerard and the historical French officer who became one of Napoleon’s Marshals.)
Agreed, I’ve read all of those, both SACD’s Gerard, and (likely embellished) autobiography of the real-life French Baron (never got his Marshal’s baton) he was modeled after.