Serbian Radical Party in the context of "Aleksandar Vučić"

The Socialist Party of Serbia (Serbian: Социјалистичка партија Србије, romanized: Socijalistička partija Srbije, abbr. SPS) is a social democratic and populist political party in Serbia. Ivica Dačić, the former prime minister of Serbia, has led SPS as its president since 2006.

SPS was founded in 1990 as a merger of the League of Communists of Serbia and Socialist Alliance of Working People of Yugoslavia with Slobodan Milošević as its first president. In the 1990 general elections, SPS became the ruling party of Serbia while Milošević was elected president of Serbia. During Milošević's rule, SPS relied on the Serbian Radical Party (SRS) from 1992 to 1993 while it later led several coalition governments with SRS, New Democracy, and Yugoslav Left. Mass protests against SPS were held in 1991, and after being accused of falsifying votes in major urban cities, such as Belgrade and Niš, 1996–1997 protests were also organised. The Democratic Opposition of Serbia coalition defeated SPS in the 2000 general elections but Milošević declined to accept the results. This resulted in Milošević's overthrow.

The term Greater Serbia or Great Serbia (Serbian: Велика Србија, romanized: Velika Srbija) describes the Serbian nationalist and irredentist ideology of the creation of a Serb state which would incorporate all regions of traditional significance to Serbs, a South Slavic ethnic group, including regions outside modern-day Serbia that are partly populated by Serbs. The initial movement's main ideology (Pan-Serbism) was to unite all Serbs (or all territory historically ruled, seen to be populated by, or perceived to be belonging to Serbs) into one state, claiming, depending on the version, different areas of many surrounding countries, regardless of non-Serb populations present.

The Greater Serbian ideology includes claims to various territories aside from modern-day Serbia, including the whole of the former Yugoslavia except Slovenia and part of Croatia. According to Jozo Tomasevich, in some historical forms, Greater Serbian aspirations also included parts of Albania, Bulgaria, Hungary and Romania. Its inspiration comes from the medieval Serbian Empire which existed briefly in 14th-century Southeast Europe from 1346 to 1371, prior to the Ottoman conquest of the Balkans. Some territories intended to be incorporated in the Greater Serbia exceeded the boundaries of the Serbian Empire, however.