The Queen has led the tributes to the men and women of the armed forced who have given their lives for their country, at the yearly service of remembrance in London.
The American ambassador to Britain, William Farrish, was invited to attend after the 11 September attacks on America.
It is the first time ever that the US Ambassador has been invited to the ceremony.
A New York fire chief who survived the attacks, Joe Callan, marched with British firemen at a monument to remember the dead, called the Cenotaph.
Wreaths of poppies
The other members of the royal family and important politicians including Prime Minister Tony Blair were also there to lay wreaths of poppies.
We use poppies as a symbol of remembrance because during World War I, many soldiers died in fields of poppies in France and Belgium.