34 (1953–1961) Dwight D. Eisenhower (1890–1969) General of the Army United States Army
35 (1961–63) John F. Kennedy (1917–1963) Lieutenant United States Navy Reserve
36 (1963–1969) Lyndon B. Johnson (1908–1973) Commander United States Navy Reserve
37 (1969–1974) Richard Nixon (1913–1994) Commander United States Navy Reserve
38 (1974–1977) Gerald Ford (1913–2006) Lieutenant commander United States Navy Reserve
39 (1977–1981) Jimmy Carter (born 1924) Lieutenant United States Navy
40 (1981–1989) Ronald Reagan (1911–2004) Captain United States Army Reserve
41 (1989–1993) George H. W. Bush (1924–2018) Lieutenant United States Navy Reserve
42 (1993–2001) Bill Clinton (born 1946) N/A
43 (2001–2009) George W. Bush (born 1946) First lieutenant Air National Guard
44 (2009–2017) Barack Obama (born 1961) N/A
45 (2017–2021) Donald Trump (born 1946) N/A
46 (2021–present) Joe Biden (born 1942) N/A
What should be a requirement?