Complex sentence: Texan sharpshooters stationed themselves on a hill overlooking the trenches and proceeded to whittle down the Philippine rearguard with measured volleys, who held their ground, utilizing focused volley fire that repelled other advances by the Americans.
Split into simpler sentences: Texan sharpshooters stationed themselves on a hill overlooking the trenches and proceeded to whittle down the Philippine rearguard with measured volleys. Nevertheless, the Filipinos continued to hold their ground, utilizing focused volley fire that repelled other advances by the Americans.