There have been a large number of battles called "The Battle of Flanders" because this area has been a battleground from the time of the Roman Empire to World War II.

Which war in which general time period are you interested in?

What about the battle of Flanders do you want to know. That was in World War I in 1917 and 1918. Flanders was in Belgium you know. The Germans were fighting the French and Belgians and English and then America got into it and finished it off.