Complex sentence: In 1901, Emilio Aguinaldo, president of the Malolos Republic, was captured and pledged his allegiance to the American government., and the U.S. unilaterally declared an end to the conflict in 1902.
Split into simpler sentences: In 1901, Emilio Aguinaldo, president of the Malolos Republic, was captured and pledged his allegiance to the American government. The U.S. unilaterally declared an end to the conflict in 1902.