U.S. Army (retired) General Lloyd Austin (L) speaks after being formally nominated to be Secretary of the Department of Defense by U.S. President-elect Joe Biden (at the Queen Theatre on December 09, 2020 in Wilmington, Delaware. The only African-American to have headed U.S. Central Command, Lloyd Austin, 67, is a four-star general who was in charge of American forces in Iraq from 2010 to late 2011. (Photo by Chip Somodevilla/Getty Images)