Here we have the commander in chief delivering solemn words at the Tomb of the Unknowns at Arlington National Cemetery on Memorial Day. President Obama also took the opportunity to salute his outgoing defense secretary, Robert Gates, and Adm. Mike Mullen, who is leaving his post as chairman of the Joint Chiefs of Staff. And Gary Sinise was there. (?!) Here’s what the president had to say to mark the occasion. –KA

The White House: