SR Serbiaball

Socialist Republic of Serbiaball was a republic of Yugoslaviaball. They're not to be confused with SR Montenegroball, and vice versa.

History
By the middle of World War II, Nazi Germanyball owned  Territory of the Military Commander, Serbiaball renamed himself to SR Serbiaball in 1945 after  Yugoslaviaball liberated him from Nazi occupation. He was always having a good time with Yugoslaviaball, like every other province or republic.