Complex sentence: In October 1598, a skirmish erupted when Oñate's occupying Spanish military demanded supplies from the Acoma Pueblo people, demanding provisions that were essential for the Acoma to survive the oncoming winter.
Split into simpler sentences: In October 1598, a skirmish erupted when Oñate's occupying Spanish military demanded supplies from the Acoma Pueblo people. He demanded provisions that were essential for the Acoma to survive the oncoming winter.