In the latest of our Battlefields In A Day series we travel to Arras in Northern France to visit some key locations connected to the fighting here in 1917-1918; from the Arras Memorial to the key battle sites, ground connected to the 1917 movie and the ground fought over by Australians in 1917 and Canadians in 1918. A separate Battlefields In A Day covering Vimy Ridge will come later!