German Administration of Poland

Invading German troops approach Bydgoszcz.

German forces in the outskirts of Warsaw.

German troops parade through Warsaw after the ...

Adolf Hitler (lower right) gives Nazi salute as he ...

German soldiers parade in Pilsudski Square.

Invading German troops enter the town of Lodz.

Invading German soldiers raise the Nazi flag in ...

The Sigismund Monument stands amid rubble in the ...

The Sigismund Monument stands amid rubble in the Polish capital after Germany's Blitzkrieg assault. Warsaw, Poland, 1939.

— National Archives and Records Administration, College Park, Md.