Three separate political entities that existed on the Balkan Peninsula in Europe during most of the 20th century.
a Balkan socialist republic
a mountainous republic in southeastern Europe
a former country of southeastern Europe bordering the Adriatic Sea; formed in 1918 and named Yugoslavia in 1929; controlled by Marshal Tito as a communist state until his death in 1980
a mountainous republic in southeastern Europe bordering on the Adriatic Sea; formed from two of the six republics that made up Yugoslavia until 1992; Serbia and Montenegro were known as the Federal Republic of Yugoslavia until 2003 when they adopted the name of the Union of Serbia and Montenegro