Complex sentence: In 1816 he led an Anglo-Dutch fleet against the Barbary states and was victor of the Bombardment of Algiers and secured the release of the 1,200 Christian slaves in the city.
Split into simpler sentences: In 1816 he led an Anglo-Dutch fleet against the Barbary states. Victory at the Bombardment of Algiers secured the release of the 1,200 Christian slaves in the city.