The Big Three': Winston Churchill, Franklin D Roosevelt and Joseph Stalin sit for photographs during the Yalta Conference in February 1945. Frame:black following their assault on Beaumont

following their assault on Beaumont Hamel during the opening day of the Battle of the Somme

1 July 1916

discussing the battle situation with the Commander of the Eighth Army

Mr Winston Churchill

Air Vice Marshal Keith Park in the cockpit of his personal Supermarine Spitfire V before his ceremonial take-off at Malta's new aerodrome at Safi

The Big Three': Winston Churchill, Franklin D Roosevelt and Joseph Stalin sit for photographs during the Yalta Conference in February 1945. Frame:black following their assault on BeaumontWinston Churchill, Franklin D Roosevelt and Jospeh Stalin sit for photographs during the Yalta ('Big Three') Conference in February 1945.