Map: GSI Japan Hizen Nagoya Castle was constructed from 1591 as Toyotomi Hideyoshi's headquarters for the invasions of Korea. A large stone-walled castle, harbor-facing military infrastructure, temporary city, and more than 130 identified daimyo camp sites concentrated people and resources from across Japan at the edge of the Genkai Sea. The complex therefore joins castle history to an invasion that devastated the Korean peninsula, displaced civilians, moved captives and objects, and reshaped East Asian diplomacy. Buildings do not survive: the castle was deliberately damaged in the early Edo period, and many walls remain in a collapsed state. Excavated palace foundations, buried earlier masonry, camps, roads, a tea-room trace, museum collections, and views toward the sea make mobilization visible without turning the site into a neutral celebration of national assembly.
