The Tomb of the Unknown Warrior: what is it, where is it located and what is written on the gravestone?

Remembrance Sunday will be marked with events all across the UK. One of the most symbolic aspects of the day is located within Westminster Abbey and has come to be a focal point for all soldiers who died in conflict and were never named.

The tomb of the unknown warrior (or soldier as he is sometimes referred to) is a grave which has been a ceremonial aspect of the Abbey and Remembrance Day for over a century.