Complex sentence: Redstone Old Fort proved significant in many wars, especially Lord Dunmore's War (1774), during which it was occupied by Capt. Michael Cresap, who hoped to prevent the local Shawnee Indians from controlling it.
Split into simpler sentences: Redstone Old Fort proved significant in many wars, especially Lord Dunmore's War. It was occupied at one point by Capt. Michael Cresap who hoped to prevent the local Shawnee Indians from controlling it.