US President Barack Obama laid a wreath at the Tomb of the Unknowns at Arlington National Cemetery in Washington as part of the country's Veterans Day commemorations.
Obama told those gathered: "We are hear today to pledge that we will never forget the profound sacrifices that are made in our name.
"Our message to all those who have ever worn the uniform of this nation is this: We will stand by your side."
More top news
David Gray, Steve Harley and KT Tunstall are just some of the big names associated with the new single, released in December.
Tonight it'll become quite clear with a patchy frost in places. The breeze will keep much of the fog at bay.
He suggested people who are not concerned about the new notes donate their bodies for 'decorative use in future five pound notes'.