Czechoslovakia–Yugoslavia relations

Czechoslovakia–Yugoslavia relations (Czech: Československo-jugoslávské vztahy; Slovak: Vzťahy medzi Československom a Juhosláviou; Serbo-Croatian: Čehoslovačko-jugoslovenski odnosi, Чехословачко-југословенски односи; Slovene: Odnosi med Češkoslovaško in Jugoslavijo; Macedonian: Односите меѓу Чехословачка и Југославија) were historical foreign relations between Czechoslovakia and Yugoslavia, both of which are now-defunct states. Czechoslovakia and the Kingdom of Serbs, Croats and Slovenes were both created as union states of smaller Slavic ethnic groups.

Source: Wikipedia — Czechoslovakia–Yugoslavia relations (CC BY-SA 4.0)