将复杂问题拆分成小部分，逐步解决更易成功。黑莲花攻略手册漫画

　　In this episode of the Why We Fight propaganda series, the events from the English and French declarations of war against Nazi Germany to the conquest of France by the Nazi. In detail, we learn of how a combination of innovative Nazi military tactics and the work of traitors allowed the conquest of much of Central Europe.