German Conquest and Occupation in Europe (1939-1942)

Identify the military doctrine that combined tanks, motorized infantry, radios, and close air support to break enemy lines rapidly between 1939 and 1941.

Combined-arms mobile warfare, commonly referred to as Blitzkrieg (lightning war).

Name the two Scandinavian countries invaded by Germany in April 1940 and state the primary resource Germany sought to safeguard.

Denmark and Norway; Germany invaded to secure shipments of Swedish iron ore through the ice-free port of Narvik.

Explain why French defensive planning failed in May 1940 despite heavy fortifications along the Franco-German border.

France relied on the static fortifications of the Maginot Line and dispersed its tanks among infantry units. German commanders bypassed these fortifications by sending armored divisions through the lightly defended Ardennes forest, crossing the Meuse River at Sedan and cutting Allied supply lines to the English Channel within 11 days.

Calculate the average daily rate of advance for German armored spearheads that covered 350 kilometers from the Ardennes to the English Channel in 11 days.

350 divided by 11 equals approximately 31.82 kilometers per day.

Contrast the treatment of Soviet prisoners of war with British and American prisoners of war held by Germany between 1941 and 1945.

Soviet prisoners were victims of deliberate ideological neglect and starvation under the Hunger Plan, resulting in roughly 3.3 million deaths out of 5.7 million prisoners (about 58 percent mortality). British and American prisoners were largely treated according to the Geneva Conventions, with a mortality rate under 4 percent.

Read the following summary of the Commissar Order (June 6, 1941): 'Political commissars in the Red Army are not recognized as soldiers; they are to be shot immediately upon capture without trial.' Explain how this order proved the invasion of the Soviet Union was an ideological war rather than a conventional conflict over territory.

The Commissar Order explicitly violated standard international military law, including the 1907 Hague Convention, by ordering summary executions of captured personnel based on political and racial ideology. It showed that Operation Barbarossa was designed to destroy the Soviet state structure and eradicate its political system, not merely defeat its standing army.