<p>Command Sgt. Maj. Kenneth O. Preston became the 13th sergeant major of the Army at an Jan. 15 swearing in ceremony at the Pentagon. “I am so proud of our soldiers,” said Preston, who recently served in Iraq as command sergeant major of V Corps and Combined Joint Task Force 7. “Having walked with them on the battlefields in Iraq over the past year, there is no doubt that they are the only Army in the world that could perform such a Herculean feat.”</p>