Brig. Gen. Daniel Yoo, the commanding general of 1st Marine Division, speaks during the Marine Corps Leadership Seminar at Arizona State University at Tempe, Arizona, Sept. 11, 2015. The seminar was an event supporting Marine Week Phoenix, which aims to connect the Corps with the people of Arizona. - Brig. Gen. Daniel Yoo, the commanding general of 1st Marine Division, speaks during the Marine Corps Leadership Seminar at Arizona State University at Tempe, Arizona, Sept. 11, 2015. The seminar was an event supporting Marine Week Phoenix, which aims to connect the Corps with the people of Arizona.