Collier's photographic history of the European War. Caption A Russian armored car in Poland. Educational Notes The invention of the car was a helpful vehicle for militaries around the world. Troops ...

This week in history: Nazis invade Poland The Nazi invasion of Poland on Sept. 1, 1939 marked the beginning of World War II. Here’s how Chicagoans reacted to the news.

Poland has estimated the financial cost of World War II losses to be 1.3 trillion euros and says it will "ask Germany to negotiate these reparations".