"In 1952, the United States was heavily involved in the Korean War. When members of the U.S. Marine Corps bought a horse to join in the war effort, little did they know that a hero would soon emerge. Trained to be a military pack horse, Sergeant Reckless quickly became a part of the unit and served to support the troops in several combat missions during the war. Discover the heroic story of Sergeant Reckless as she bravely made many solo trips during battles to deliver supplies to troops on the front lines"-- Provided by publisher.