U.S. President Donald Trump greets Adm. John M. Richardson, Chief of Naval Operations as he arrives to attend the swearing-in ceremony for Secretary of Defense James Mattis in the Pentagon January 27, 2017 in Arlington, Virginia.

- Image ID: HP6JGR

U.S. President Donald Trump greets Adm. John M. Richardson, Chief of Naval Operations as he arrives to attend the swearing-in ceremony for Secretary of Defense James Mattis in the Pentagon January 27, 2017 in Arlington, Virginia.

US Air Force Photo / Alamy Stock Photo

Image ID: HP6JGR

Location: Washington, DC