Food also, however, affected the morale of the soldiers on a day to day basis and helped them to remember home. British army rations included tea and jam and the French soldiers maintained a daily allowance of red wine for much of the war (up to 3/4 of a liter per day in 1916).
In the early months of the war when both sides were still optimistic that the conflict would be short-lived, an informal truce was declared at Christmas along sections of the Western Front. British, French, and German soldiers from both sides stopped fighting and exchanged small gifts and food, such as cheese or wine.
A poster from 1918 encouraged French citizens to “Save the Wine for our Soldiers.”