From his trench barrack on the front line at Avion near Vimy Ridge, Lieutenant-Colonel Herbert Molson ripped a piece of paper from his notebook and began writing his eldest son. “When this war is finished, when the battle has been won,” he resolutely stated on July 25, 1917, “I will return to Canada to fight an enemy which is as tyrannical as the Kaiser.” Herbert Molson would not be alone, however, in his fight against his Canadian enemy—the prohibitionists. As they had in the trenches during the First World War, his brothers in arms would stand beside him. Together, they proved a potent force.