t takes 3.4 million uniformed and civilian personnel to defend the U.S. against foreign threats. Figuring out ways to get, train and keep the best manpower our tax dollars can afford has been David S. C. Chu's job since he was appointed by President Bush in May of 2001. Chu not only advises the Secretary of Defense on recruitment, career development and benefits for 1.4 million on active duty and 1.3 million reserves, he personally oversees their state of military readiness. Chu knows the defense establishment from the ground up. A '64 Yale magna in econ and math, Chu signed on as an Army officer when the Vietnam war blew up in 1968. He earned his captain bars at the end of his Vietnam tour. Between 1978 and 1993 Chu worked his way up the defense establishment with enough distinction to earn a DOD Medal for Distinguished Public Service with palm. He spent eight years as a senior RAND executive before answering the call to his current post as Under Secretary of Defense for Personnel and Readiness.