Answer
In the Expedition to Abyssinia, an 1868 campaign, British forces, led by General Robert Napier, invaded present-day Ethiopia to secure the release of British and other European hostages held by Emperor Tewodros II. The campaign culminated in the Battle of Magdala, where Napier's superior firepower and tactics prevailed, leading to Tewodros's suicide. British casualties were minimal compared to the Ethiopian losses, and the hostages were successfully rescued.