President Biden said serving the people has 'been the greatest honor of my life' after laying a wreath at the Tomb of the Unknown Soldier for the final time.

President Biden reflected on the "sacred obligation" to honor and protect those who serve during his final Veterans Day appearance as commander-in-chief on Monday at Arlington National Cemetery. The big picture: The observance event and ceremonial wreath-laying mark Vice President Kamala Harris' first public appearance since her post-election speech Wednesday — and one of just a handful of appearances of the sort left in Biden's tenure.