World War, 1914-1918 -- Aerial operations

This photograph is one of a series showing soldiers working with an observation balloon. Title taken from description on back.

This photograph depicts a group of German Fokker DR (Dreidekker) I airplanes. Taken from a photograph album created by an anonymous soldier in the U.S.Army. This is part of a set of found or captured images of an unknown German photographer. Title taken from description on back.

Possible German Fokker monoplane, parked in a field.

This photograph depicts a bomber of an unidentified type parked in a grassy field with soldiers standing around. Title taken from description on back.

Photograph of an American training balloon on ground at Fort Omaha. This photograph is one of a series showing soldiers working with an observation balloon. Title taken from description on back.