To 1919, Zalozetsky-Sas served the ZUNR's foreign diplomacy as an envoy to German-Austria and Switzerland. After the ZUNR's disestablishment, he also became a celebrated art historian, researching the impact of Gothic and Baroque architecture in Western Ukraine. Politically, he and his mentor Vyacheslav Lypynsky supported the revival of a monarchical Ukrainian Hetmanate, and were ideologically opposed to the left-leaning People's Republic (UNR) and Symon Petliura. Their "classocratic" program fused agrarianism, producerism and corporatism, criticizing party democracy, and upholding Skoropadskyi as the guarantee of Ukrainian unity. In Vienna, Zalozetsky-Sas joined Lypynsky's Ukrainian Agrarian Statist Party (USKhD), which, in 1921, also organized a chapter in Romania—the Union of Ukrainian Agrarians, presided upon by P. Novitsky in Bucharest.