Frank Capra's 1943 propaganda film "Divide and Conquer," part of the "Why We Fight" series, utilizes animation and newsreels to explain and condemn the German Blitzkrieg strategy. The film illustrates how Germany used rapid, combined-arms tactics to bypass fortifications, encircle Allied forces, and quickly conquer Western Europe, thereby demonstrating the necessity of American involvement in World War II. | History In Pictures

Bright Christmas stars have long been a familiar sight across Germany during the darkest days of the year, but none is more famous — and lately as popular — as the Moravian stars from the eastern village of Herrnhut near the Polish and Czech borders. | AP