Complex sentence: This chain of Chilean victories came to an end with the Peruvian victory at Tarapaca, on November 27,1879, when a Chilean force of 2,000 men attacked recklessly an Allied army of 4,000 soldiers, suffering a heavy defeat.
Split into simpler sentences: This chain of Chilean victories came to an end with the Peruvian victory at Tarapaca, on November 27,1879. In this battle, a Chilean force of 2.000 men attacked recklessly an Allied army of 4.000 soldiers, suffering a heavy defeat.