Complex sentence: Before setting out-separately from each other to ease supply-with a total of 5,000 infantry and 700 cavalry, on a 300-mile winter march the combined armies of O’Neill, O’Donnell and Tyrrell came to 6,180.
Split into simpler sentences: Before setting out-separately from each other-with a total of 5,000 infantry and 700 cavalry, on a 300-mile winter march. The combined armies of O’Neill, O’Donnell and Tyrrell came to 6,180.