Portoferraio is a town and comune in the province of Livorno, on the edge of the eponymous harbour of the island of Elba. It is the island's largest city. Because of its terrain, many of its buildings are situated on the slopes of a tiny hill bordered on three sides by the sea.

The invasion of Elba, codenamed Operation Brassard, was part of the Italian campaign during the Second World War. The invasion was carried out from 17 to 19 June 1944 by Free French Forces supported by British and American ships and aircraft. According to the testimony of captured Germans, Allied activity had been observed on Corsica, thus the defenders were aware of the impending invasion 24 hours in advance. They resisted for two days before being given permission to withdraw to the mainland.