Annotated Map of Europe, August 28, 1939. Time Magazine
The German Army enters Paris, June, 1940. Imperial War Museums
Britain entered World War II alongside France on September 3, 1939 in response to the Nazi's invasion of Poland.
September 3, 1939. New York Times
"Two nations had differences to settle. They could do this by way of free and fair negotiations, as they had been advised from every side. At the moment when their plenipotentiaries were about to meet, Germany brutally attacked Poland, thus bringing about a state of war which nothing could justify."
- President M. Albert Lebrun of France to the French Parliament, September 2, 1939 (New York Times)
France was invaded in June, 1940.
Annotated "Their Finest Hour" Speech, 1940. Churchill Archives
This Was Our Finest Hour, June, 1940. British National Archives
"This was their finest hour. . ." Winston Churchill, June 18, 1940. Royal Air Force