January 2 – The Bulgarian government gave former King Ferdinand, who had been living in exile since 1918, permission to return to Sofia while Yugoslavia immediately sends an ultimatum objecting to the move.[1]
January 4 – Yugoslavia sends another sharp note to Bulgaria saying it would not accept the return of Ferdinand from exile or any further provocations. Newspapers in Belgrade clamored for war.[2]
References
^Fendrick, Raymond (January 2, 1924). "Ultimatum to Bulgars Sent by Jugo-Slavs". Chicago Daily Tribune.