When did major warships stop dismounting cannon for use in land campaigns?
Short answerThe practice persisted through the Boxer Rebellion and into the First World War, then largely ceased as a normal expeditionary method.
NotesNaval guns were still used ashore around the Boxer Rebellion and possibly in the First World War. By the Second World War, removing a major vessel's weapons for an expeditionary land battery was no longer normal practice, although guns from lost ships could still become fixed coastal batteries.