Battle Lines Drawn (January - March 1940) World War 2: The Call of Duty - A Complete Timeline : Season 1 Episode 2

As the New Year dawned and the people of Britain faced the introduction of rationing, all eyes turned northwards to Scandinavia, where Adolf Hitler was preparing for a full-scale invasion. U-Boat attacks increased and at Scapa Flow a German Air Raid claimed the first British casualties.