Complex sentence: After the Red Sticks were defeated at Horseshoe Bend, McQueen, along with other Red Stick warriors, retreated into Florida and continued to fight during the First Seminole War.
Split into simpler sentences: After the Red Sticks were defeated at Horseshoe Bend, McQueen, along with other Red Stick warriors, retreated into Florida. They continued to fight during the First Seminole War.