Aerial photograph showing an unidentified trench system during World War One. The photo was taken by a Signal Corps photographer and received on March 10, 1921. The trench system is depicted from above, providing an aerial view of its layout. The photograph is labeled with the number 7495 and accompanied by issuance notes.

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Size: 9183px × 6305px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1918, activities, aerial, american, archive, army, battlefield, communication, corps, defense, defenses, enemy, engineering, historical, history, image, infrastructure, intelligence, lines, logistics, military, movement, operations, photograph, photographs, photography, planning, reconnaissance, signal, strategic, strategy, surveillance, system, tactical, tactics, technology, territory, topographical, trench, trenches, troop, unidentified, view, war, war-time, warfare, wartime, world, wwi, zone