Yasukuni Shrine is a Shinto shrine located in Tokyo, Japan. It was established in 1869 to honor the spirits of those who died in service to the Japanese Empire, particularly during the Sino-Japanese War and World War II. The shrine is a place of remembrance for over 2.5 million individuals, including soldiers and civilians. The shrine has been a source of controversy, especially due to the enshrinement of Class A war criminals from World War II. Visits by Japanese politicians, including prime ministers, have sparked debates about nationalism and historical memory, affecting Japan's relations with neighboring countries like China and South Korea.