Complex sentence: James Walker CB, KTS (1764--13 July 1831) was an officer of the Royal Navy who served during the American War of Independence, and the French Revolutionary and Napoleonic Wars, rising to the rank of Rear-Admiral.
Split into simpler sentences: James Walker CB, KTS (1764--13 July 1831) was an officer of the Royal Navy. He served during the American War of Independence, and the French Revolutionary and Napoleonic Wars, rising to the rank of Rear-Admiral.