Maj. Gen. Jon M. Davis, commanding general of the 2nd Marine Aircraft Wing, and Sgt. Maj. Susan M. Bellis, sergeant major of 2nd MAW, lead their Marines on a run celebrating the birth of the Marine Corps 236 years ago on Nov. 10, 1775. - Maj. Gen. Jon M. Davis, commanding general of the 2nd Marine Aircraft Wing, and Sgt. Maj. Susan M. Bellis, sergeant major of 2nd MAW, lead their Marines on a run celebrating the birth of the Marine Corps 236 years ago on Nov. 10, 1775.