The story
Transliteration of Ukrainian сла́ва Украї́ні (sláva Ukrajíni, literally “glory to Ukraine”). A patriotic salute originating in the Ukrainian War of Independence at the end of World War I, together with its response interjection heroiam slava. The phrase is in the dative case, with Украї́ні (Ukrajíni) being the dative form of the noun Украї́на (Ukrajína). It indicates the recipient of the action or the indirect object.
Etymology from Wiktionary, CC BY-SA 4.0.