Six months of near-inaction on the Western Front, known as the Phony War, end abruptly in May 1940 when German forces launch the campaign that gives warfare a new word: Blitzkrieg. The film traces how fast-moving armor and air power combined to break through the Low Countries and France in weeks, overturning the static trench-war assumptions left over from 1914-18. Archival footage of tanks crossing the Ardennes, columns advancing through Belgium and the Netherlands, and the collapse of French defenses sits alongside expert narration explaining the tactical thinking behind the German plan and why Allied commanders were caught off guard. History Hit's presentation keeps the focus on the operational story, from the opening airborne strikes to the encirclement that pushed British and French forces toward the coast. It is a straightforward, well-sourced account of how a six-week campaign reshaped the vocabulary and expectations of modern war, ending as the Allied position in France becomes untenable.