Editing Jules van Hetten (section)

== Military service ==

Van Hetten returned to Prussia in 1905 and lived temporarily in [[Potsdam]]. He worked with German aircraft engineers on flight-control systems, applying knowledge obtained through his experience piloting UFOs. He acquired Prussian citizenship before the First World War.

In 1914, Van Hetten entered Prussian military service as an aviation specialist and suspended his flights between Earth and [[Era (planet)|Era]]. He transferred to [[Royal Prussian Jagdstaffel 2]] in 1916 and served as a fighter pilot until the end of the war. He received credit for 30 confirmed aerial victories.

Van Hetten withdrew from aviation after the war. He remained in Potsdam until 1923, when he returned to Suriname. He continued providing private surgical treatment during this period.