Kammala jumla mai zuwa: An tattara Stahl a cikin Rundunar Sojojin Romaniya a 1916, lokacin da Romania ta shiga Yaƙin Duniya na I a matsayin abokin gaba na Austria-Hungary. Ya kasance laftanan aji a cikin 6th (Mihai Viteazu) Regiment. Ya ga aiki a farkon matakan yakin basasa na Romania, amma ya ji rauni sosai a cikin rami a lokacin yakin Satumba 1916. Rashin hankali, an janye shi kuma ya sami ceto daga manomi, kuma yana jinya a asibitin Gerota lokacin da Iorga ya keɓe masa yabo a cikin "Neamul Românesc" (23 ga Satumba, 1916). Ya kasance mai warkarwa a Ploiești lokacin da Central Powers
mamaye kudancin Romania.