Complex sentence: At the end of the same century Alghero was de-militarised and, during the Fascist era, part of the surrounding marshes was reclaimed and the suburbs of Fertilia and S.M. La Palma were founded.
Split into simpler sentences: At the end of the same century Alghero was de-militarised. During the Fascist era, part of the surrounding marshes were reclaimed and the suburbs of Fertilia and S.M. La Palma were founded.