The Kingdom was reformed into the Kingdom of Yugoslavia in 1929 .
Montenegro subsequently joined the Kingdom of Serbia , which was followed by the formation of the Kingdom of Serbs , Croats and Slovenes .
The Kingdom was reformed into the Kingdom of Serbs , Croats and Slovenes     in 1929 .
Montenegro subsequently joined the Kingdom of Serbia , which was followed by the formation of the Kingdom of Serbs , Croats and Slovenes .