Complex sentence: Faustin launched successive invasions into Dominican territory, in 1849,1850,1855 and 1856, each with the objective of seizing the eastern half of the island and annexing it to Haïti.
Split into simpler sentences: Faustin launched successive invasions into Dominican territory, in 1849,1850,1855 and 1856. Each with the objective of seizing the eastern half of the island and annexing it to Haïti.