Is there an historical anime that doesn't really go into fantasy or sci-fi but more about war like themes: Like the Samurai aka feudal Japan or English redcoats or (maybe at bit farfetched) Napoleon's invasion of Russia?
YES. Rurouni Kenshin. One of the best-loved manga series of all time, and it has a LOT of historical references. I actually used it as a reference for a school powerpoint. It's a historical/romantic comedy/action series, and it's decent in anime form.
Millennium Actress is a VERY good Anime movie. It's not really surrounding an event, but it's basically a narration kind of film about this Actress in the early 1930s. It's friggen amazing, and is a romance theme.
"Bare Foot Gen" is a movie about when the A-bomb was dropped on Japan. I saw that freshman year in history^^