[1] At its peak, the party had 20 seats in Republic of Serbia's National Assembly following the 1997 general election.

[3] On 24 and 25 March 1995, the party held its 1st Congress at the Sava Center in Belgrade, and theatre director Ljubiša Ristić was elected president.

[19] JUL declared itself to be a party of all "left-wing and progressive forces that believed that the general interest always comes above private interest", including communists, socialists, greens,[20] social democrats, and democratic socialists.

[1] Political scientist Srbobran Branković [sr] stated about JUL that "its policies were totally opposite to its rhetoric.

[23] Its social base was mainly amongst peasants and pauperised workers, but it also had members from the so-called nouveau riche of Serbia during Milošević's terms in office, and many high-ranked civil servants and army staff.

During the 1990s, opponents of Milošević's government sometimes referred to the JUL "a branch of Communist Party of China in Yugoslavia".