Col. Brent S. Willson, previous commanding officer, Headquarters and Service Battalion, U.S. Marine Corps Forces, Pacific, says goodbye to the battalion at the change of command ceremony here July 26. After initiating and completing countless projects to improve the quality of life of the Marines aboard the base, Willson leaves the Battalion under the command of Col. Darric M. Knight. - Col. Brent S. Willson, previous commanding officer, Headquarters and Service Battalion, U.S. Marine Corps Forces, Pacific, says goodbye to the battalion at the change of command ceremony here July 26. After initiating and completing countless projects to improve the quality of life of the Marines aboard the base, Willson leaves the Battalion under the command of Col. Darric M. Knight.