Complex sentence: He served as an aide-de-camp to Lord Albemarle for the expedition to Havana during the Seven Years' War and then commanded his regiment at the Battle of White Plains and captured General Charles Lee at Basking Ridge during the American Revolutionary War.
Split into simpler sentences: He served as an aide-de-camp to Lord Albemarle for the expedition to Havana during the Seven Years' War. He also commanded his regiment at the Battle of White Plains and then captured General Charles Lee at Basking Ridge during the American Revolutionary War.