Complex sentence: General William Moultrie was a National Hero in Battle of Sullivan's Island in the American War of Independence, where the successful defence of Charleston, was the Southern States Equivalent to Bunker Hill, a Major turning point in the Revolutionary War.
Split into simpler sentences: General William Moultrie was a National Hero in Battle of Sullivan's Island in the American War of Independence. The successful defence of Charleston (the Southern States Equivalent of the Battle of Bunker Hill), was a Major turning point in the Revolutionary War.