[1][2] Vauhnik was born on 24 June 1896 in Svetinje, Austria-Hungary (modern-day Slovenia) into a patriotic Slovenian family and was drawn to the military even as a young boy.

[4] Vauhnik was probably the first in the world who presented information that the Nazi Germany would invade Poland and Yugoslavia and later Soviet Union, based on the covert and legal methods he used.

[1] Based on the orders of Milan Nedić, who was Minister of Defence of the Kingdom of Yugoslavia, Vauhnik visited German supreme command twice, to secure Yugoslav interest in the port of Thessaloniki.

[6] According to his own testimony, by 14 March 1941 Vauhnik had "irrefutable proof and even fairly detailed plans" about the initiation of preparations for attacks on Soviet Union by German forces.

[12] According to some sources, Vauhnik travelled to Switzerland in June 1944 to offer to put Slovenian domobranci, some soldiers of Independent State of Croatia and some Chetnik units under British command.