Sgt. Maj. Peter Siaw and Sgt. Maj. David Maddux stand ready for the Education Command relief and appointment ceremony Jan. 4. Siaw holds the sword representing the leadership of the Command Sergeant Major, which was passed to Maddux. - Sgt. Maj. Peter Siaw and Sgt. Maj. David Maddux stand ready for the Education Command relief and appointment ceremony Jan. 4. Siaw holds the sword representing the leadership of the Command Sergeant Major, which was passed to Maddux.