Complex sentence: In 1942, during World War II, the archipelago was made a Federal territory that also included Rocas Atoll and Saint Peter and Paul Rocks, and political and ordinary prisoners were sent to the local prison.
Split into simpler sentences: In 1942, during World War II, the archipelago was made a Federal territory, which included Rocas Atoll and Saint Peter and Paul Rocks. The government sent political and ordinary prisoners were sent to the local prison.