The Queen has renewed a promise she made more than 70 years ago to devote her life to service in her annual Commonwealth Day message.
In a message ahead of this afternoon's event, the Queen said: "In this year of my Platinum Jubilee, it has given me pleasure to renew the promise I made in 1947, that my life will always be devoted in service."
The phrase echoes a speech the young Princess Elizabeth made on April 21 1947, to mark her 21st birthday during a tour of South Africa with her parents and younger sister Princess Margaret.