Nov 17, 2025
A map of the German invasion of Poland in 1939 which marked the beginning of the Second World War (1939–1945). The campaign demonstrated the devastating effectiveness of Blitzkrieg, a new form of fast, coordinated warfare combining armor, infantry, and air power. Launched under Operation Fall Weiss, German forces struck without a formal declaration of war on 1 September 1939, attacking from East...