This country harbored the “varhovist” SMAC group to support rebels in its western neighbor during the Ilinden Uprising. Corporatists in this country opposed to the Axis formed the Zveno nationalist group that launched a 1934 coup, ending its support for another country’s separatist group IMRO. This country switched sides during World War II after the broad anti-Axis Fatherland Front alliance launched a 1944 coup. A portion of this country gained partial autonomy following the Treaty of Berlin as Eastern Rumelia. This country lost territory after fighting all of its neighbors in the Second Balkan War, prompting its entry in World War I on the side of the Central Powers. For 10 points, name this Balkan country led by Tsar Boris III before becoming a communist nation led by Todor Zhivkov. ■END■
ANSWER: Bulgaria [accept Kingdom of Bulgaria or People’s Republic of Bulgaria]
<European History>
= Average correct buzz position