There were many castles built by Japanese forces in the southern region during the Bunroku-Keicho War, but they are known as wagon (Japanese-style castles), due to the considerable economic development in recent years in South Korea, many of these wagon have been destroyed despite being important historical sites, due to the strong anti-Japanese sentiment.
また文禄・慶長の役で南岸域を中心に日本軍が造った城も多く存在し、それらは倭城と呼ばれているが、近年の韓国の経済発展に伴う各種造成工事でその少なからぬものが根強い反日感情もあって重要な史跡とみなされることなく毀損されているという現状がある。