David Dimbleby introduces live coverage from London as the king leads the Remembrance Sunday commemorations at the Cenotaph for the first time as monarch.His Majesty will be joined on Whitehall by other members of the royal family and representatives of the government, the armed forces, the Commonwealth and faith communities for the two-minute silence at 11 o'clock and the National Service of Remembrance. This is followed by wreath-laying as the nation remembers all those who died serving their country.Nearly 10,000 veterans are expected to take part in the historic march-past. Sophie Raworth is on Horse Guards to hear from those marching as they share their own remarkable stories of courage and sacrifice.BBC iPlayer and Red Button will have uninterrupted coverage of the live events at the Cenotaph.