The Battle of Verdun was one of the longest and most grueling battles during World War I, lasting from February to December 1916. It took place in northeastern France and was primarily fought between the French and German armies. The battle aimed to bleed the French forces dry, as the Germans believed that capturing Verdun would break French morale. Over 700,000 soldiers were killed or wounded in this brutal conflict, making it a symbol of French national determination. The phrase "They shall not pass" became famous, representing the French resolve to defend their territory. Ultimately, the battle ended in a stalemate, with both sides suffering immense losses.