Army Lt. Gen. Frank J. Grass, incoming National Guard Bureau chief, delivers remarks at the change-of-responsibility ceremony for chief at the Pentagon, Sept. 7, 2012. Grass, who replaced Air Force Gen. Craig R. McKinley, received his fourth star during the event. Army Lt. Gen. Frank J. Grass, incoming National Guard Bureau chief, delivers remarks at the change-of-responsibility ceremony for chief at the Pentagon, Sept. 7, 2012. Grass, who replaced Air Force Gen. Craig R. McKinley, received his fourth star during the event. SHARE: Download: Full Size (2.99 MB) Tags: Photo Essays Credit: VIRIN: 466804-Q-CZR39-297.jpg Photo Gallery