Yank patrol boats and sentries on watch along the river in Germany as part of the American Army of Occupation during World War One. Pictured are Otto Hartmann, still serving in the German army, and Corporal Willard W. Whaley of Company F, 7th U.S. Infantry.

Royalty-Free Standard Commercial licenses are granted for worldwide, non-exclusive and perpetual use, unless specifically noted otherwise. All Royalty-Free transactions are final. The Royalty-Free Standard Commercial license has no limitations and covers up to 15 users.