Most history museums in Japan skirt the issue of war or focus on the burden of the common people. Not so here: Yūshū-kan begins with Japan's samurai tradition and ends with its defeat in WWII. It is also unapologetic and has been known to boil the blood of some visitors with its particular view of history.
There are also some emotionally harrowing exhibits, such as the messages (translated into English) of kamikaze pilots written to their families before their final missions.