Complex sentence: The Spanish forces were marching toward Imus, the seat of Aguinaldo's faction, and as a result, he redirected his troops to Perez, Dasmariñas, where another battle had begun.
Split into simpler sentences: The Spanish forces were marching toward Imus, the seat of Aguinaldo's faction. As a result, Aguinaldo redirected his troops to Perez, Dasmariñas, where another battle had begun.