Sergeant Major of the Marine Corps, Sgt. Maj. Ronald L. Green, addresses Combat Center Marines and sailors at the Sunset Cinema during the Ultimate Fighting Championship Clinic and Fight Night Viewing, April 18, 2015. Green thanked the Marines and sailors for the hard work they do in support of the Combat Center. (Official Marine Corps photo by Lance Cpl. Medina Ayala-Lo/Released) - Sergeant Major of the Marine Corps, Sgt. Maj. Ronald L. Green, addresses Combat Center Marines and sailors at the Sunset Cinema during the Ultimate Fighting Championship Clinic and Fight Night Viewing, April 18, 2015. Green thanked the Marines and sailors for the hard work they do in support of the Combat Center. (Official Marine Corps photo by Lance Cpl. Medina Ayala-Lo/Released)