Millions of people are honouring Britain's war dead as Remembrance Day commemorations take place across the country.
A two-minute silence took place at 11am and wreaths were laid at memorials.
In a break with tradition, Prince Charles laid the head of state's wreath at the Cenotaph in Whitehall as he carried out the Queen's usual duties.
Instead, the Queen stood with the Duke of Edinburgh on a Foreign Office balcony to observe the service.
Placing the wreath at the base of the Whitehall monument would have required the monarch, who is 91, to walk backwards down the stone steps.