General John J. Pershing, Commander in Chief of the American Expeditionary Forces in France, on the left, is pictured with Major General William H. Johnston on the Argonne front. The photograph is part of the Signal Corps collection, dating back to World War One.

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.