52K views · 619 reactions | Robert picks a World War II era dummy artillery shell that's in perfect condition. | American Pickers on The History Channel | Facebook

Blitzkrieg, or “lightning war,” emerged in the 1920s-1930s as Germany developed fast-paced, coordinated military tactics to overcome World War I’s trench warfare stalemates. Combining tanks, motorized infantry, artillery, and air support, it aimed to encircle and overwhelm enemies rapidly. Pioneered by strategists like Guderian, it prioritized speed and surprise. The tactic proved devastatingly effective in World War II, notably during Germany’s 1939 invasion of Poland and 1940 conquest of Franc