Passage: Smith was born in White Plains, New York.  Smith served in the US Navy, and subsequently obtained his B.Sc. degree from the University of Pennsylvania in 1955 and his Ph.D. degree from the University of Chicago in 1959 with a dissertation of only eight pages. He worked at Bell Labs in Murray Hill, New Jersey from 1959 to his retirement in 1986, where he led research into novel lasers and semiconductor devices.  During his tenure, Smith was awarded dozens of patents and eventually headed the VLSI device department.In 1969, Smith and Willard Boyle invented the Charge-Coupled Device (CCD),  for which they have jointly received the Franklin Institute's Stuart Ballantine Medal in 1973, the 1974 IEEE Morris N. Liebmann Memorial Award, the 2006 Charles Stark Draper Prize, and the 2009 Nobel Prize in Physics.

Question: Who did Smith serve in?
US Navy