Documentary about events of 1939 - preparations for war and then hostilities break out.
British troops are up against it as refugees stream back from German air raids in France.
General Inglis talks about British retreat from Crete.
Footage of HMS Courageous at sea before being sunk by German U-boat.
Night shots of the burning oil refinery on the Island of Aruba after a U-boat attack.
Mr Charles Jarman explains how to fight U-boats.
Neutral merchant ships remain in Swedish docks due to threat of U-boat attack, Sweden.
A look at the military might of Soviet Russia.
Montgomery's offensive on Western Front has started - battle of Siegfried Line.