World War I had a profound effect on the French wine industry.  The Champagne wine region was a battleground for most of the war. In addition, the loss of markets, labor shortages and production problems presented huge challenges for the industry. Despite these challenges, wine was a growing part of French national identity.  It also played a daily role in the war. French soldiers received a daily wine ration because French military leaders and doctors considered wine a fortifying tool that increased combat effectiveness. To discuss France, wine, and World War I, the World War I Podcast recently hosted Walter Wolf III—a lawyer, military historian, and wine expert.