The Queen will lead a remembrance service in the capital today as she lays the first wreath on the Cenotaph at Whitehall.
The event is the focal point of the country's Remembrance Sunday ceremonies and will see other senior royals, Prime Minister David Cameron and London Mayor Boris Johnson also leaving floral tributes at the memorial.
After the wreath laying ceremony and two minute silence at 11am, more than 10,000 military veterans and civilians will march past the Cenotaph.
David Cameron has started a special fundraising effort by the Royal Marines ahead of Remembrance Sunday. The Marines are attempting to break a world record for the fastest speed march. A team will head west and attempt to run a 26.5 mile course in under 4 hours and 19 minutes.