In the year that marked the centenaries of the Battle of the Somme and the Battle of Jutland, the 25th anniversary of the Gulf War and the 80th anniversary of the first flight of the Supermarine Spitfire, we remember those who gave their lives for their country. Huw Edwards presents the traditional Festival of Remembrance at the Royal Albert Hall, featuring Alfie Boe, Michael Ball and Laura Mvula.