The Yūshūkan is a Japanese military and war museum located within Yasukuni Shrine in Chiyoda, Tokyo. As a museum maintained by the shrine, which is dedicated to the souls of soldiers who died fighting on behalf of the Emperor of Japan including convicted war criminals, the museum contains various artifacts and documents concerning Japanese war casualties and military activity from the start of the Meiji Restoration to the end of World War II. The museum was established in 1882, and describes itself as the first and oldest war and military museum in Japan. It has attracted controversy for its revisionism of Japan's wartime actions and militaristic past.

Yasukuni Shrine is a Shinto shrine located in Chiyoda, Tokyo. It was founded by Emperor Meiji in June 1869 and commemorates those who died in service of Japan, from the Boshin War of 1868–1869, to the two Sino-Japanese Wars, 1894–1895 and 1937–1945 respectively, and the First Indochina War of 1946–1954, including war criminals. The shrine's purpose has been expanded over the years to include those who died in the wars involving Japan spanning from the entire Meiji and Taishō periods, and the earlier part of the Shōwa period.