After the end of World War I, the Yugoslav military diplomacy drew upon the experience, infrastructure, and personnel of the kingdom’s former diplomacy. Former offi cers of the Austro-Hungarian army were not given posts in military and diplomatic delegations up to the mid-30s. A series of negative experiences with senior Austro-Hungarian offi cers who joined the Yugoslav army, their swift retirement from active service or disagreements with the new environment, allowed for Slovene and Croatian offi cers to enter the military diplomatic service. They were given prestigious, confi dential, and responsible posts; they joined the Yugoslav army as young offi cers or started their military careers in the Kingdom of Yugoslavia’s army. Mirko Burja was the fi rst Slovene offi cer to be appointed to the post of a military attaché in 1934. Ivan Prezelj, Franc Stropnik, Vladimir Vauhnik, and Milan Prosen followed suit, and Josip Rijavec was appointed as a deputy military attaché. In the Kingdom of Yugoslavia’s fi nal days, four out of a total of eleven military attachés were Slovenes. Percentually speaking, this exceeded considerably the total percentage of Slovenes in the Yugoslav offi cers’ corps. They were extremely capable general staff offi cers with outstanding military and general education. They were very accomplished and took up responsible military duties, they worked in confi dential missions and were held in high esteem by the royal court.