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 (10[1])Zveno nationalist group that launched a 1934 coup, (10[1])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. (10[1])A portion of this country gained partial autonomy following the Treaty of Berlin as (10[1])Eastern Rumelia. (10[1])This country lost territory after fighting all of its neighbors in the Second Balkan War, (10[2])prompting its entry (10[1])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■