Japanese living in Korea worked on many projects commemorating Japan’s wars of aggression, which were connected to the occupation of the Korean Peninsula. The 『Imjin』 War (1592-1598) was subject of this commemoration. The war broke out when Toyotomi Hideyoshi attacked Korea on the pretext that the Korean court rejected Toyotomi’s request to use the Korean Peninsula as a through route for an attack on the Ming dynasty. For the Korean people, the seven years of war were a sad history when much of the country was destroyed and many people killed or taken as slaves. But Japanese colonizers visited the remaining sites related to the 『Imjin』 War, made postcards with pictures of those sites, and posted them to their friends and family in Japan. Between the 17th and 19th centuries, tales, historical romance stories, and fiction about distinguished military services of Japanese generals in the war were popular among the Japanese people. Furthermore, following the Meiji Restoration (1868), the 『Imjin』 War was evaluated highly within the framework of national learning (kokugaku) as “a splendid achievement succeeding from Empress Jingu’s occupation of Samhan” in the ancient period. The Japanese considered the Imjin War as the background to “annexation” and thus commemorated the history of aggression toward Korea.