A slightly expanded photo of a one already posted: US paratroopers board a C-47 during Operation Market Garden. A flight officer at the door supervising the proceedings; England, September 17, 1944. 

Off to go to Holland

  Although the German railway guns may have been an extremely formidable weapon, they weren’t invincible, and their size made them a target for Allied forces. Here, American troopers can be seen proudly standing on top of a captured railway gun.
  Easily one of the German’s biggest weapons, they were sorely disappointed when they learned that it had fallen into the enemy’s hands. Now, the railroads and the forts in France were safe, for the most part.

Captured Railway Gun

Army medics and civilian nurses treat wounded American soldiers in a makeshift hospital at Bastogne, Belgium; Battle of the Bulge, January 1945.