FORT LEAVENWORTH, Kan. (AP) — Former Secretary of Defense Donald Rumsfeld will be in northeastern Kansas this week to address military officers and sign books for the public. The Leavenworth Times reports that Rumsfeld is to speak at 10am tomorrow (FRI) to officers attending the Army Command and General Staff College at Fort Leavenworth. Afterward, he'll sign books at a public event at Fort Leavenworth's Post Exchange. Rumsfeld served as secretary of defense under President Gerald Ford in the 1970s and during the administration of President George W. Bush. He has been touring the country to promote his memoir, "Known and Unknown."