 Then, in 1866, he enlisted in the Austro-Prussian War as a volunteer.Between 1868 and 1870 he travelled across Africa.From 1872 to 1874, he provided for the "S/X Admiral Tegetthoff" research vessel and elaborate preparations of the Austro-Hungarian North Pole Expedition, led by Julius Payer and Karl Weyprecht from 1872 to 1874.