A few more: Nazi Germany and Soviet Russia took Poland in 37 days (people forget that the Soviets and Nazis were allied at the beginning of WWII and had an agr

A few more: Nazi Germany and Soviet Russia took Poland in 37 days (people forget that the Soviets and Nazis were allied at the beginning of WWII and had an agreement to split Poland). The Nazis alone took Netherlands in four days, and Belgium in 18 days.