Known and Unknown: A Memoir "learned nothing and forgotten nothing". Known and Unknown: A Memoir Known and Unknown: A Memoir is an autobiographical book by Donald Rumsfeld, an American politician and businessman who served as Secretary of Defense from 1975 to 1977 and again from 2001 to 2006 (among many other positions). He published it through Penguin Group USA in February 2011. It covers a variety of his experiences such as working as a Republican in the U.S. House in the late-1960s, serving in the Ford Administration during the Watergate and Vietnam crises, and serving during the George W. Bush Administration through the Abu Ghraib
Known and Unknown: A Memoir anywhere". He details his four decade long friendship and alliance with Dick Cheney. Rumsfeld recounts, serving as President Gerald Ford's chief of staff, bringing in Cheney as an assistant to the president. He states that Cheney has been a sort of doppelgänger due to, among other reasons, their mutual Ivy League background and mutual success as major corporate CEOs. Rumsfeld recalls his service as President Ronald Reagan's Middle East envoy at the time that U.S. pulled out of Lebanon. He states that the situation and its aftermath showed him that American weakness (whether real or merely perceived) is provocative. He