A prominent opponent of Slobodan Milošević's government in the 1990s, Miličić was at different times a member of the Serbian Renewal Movement (Srpski pokret obnove, SPO) and the Democratic Party (Demokratska stranka, DS).
The SPO contested the December 1992 Yugoslavian parliamentary election as part of the Democratic Movement of Serbia (Demokratski pokret Srbije, DEPOS); Miličić appeared in the lead position on the coalition's electoral list for the Smederevo division and was elected when the list won two seats.
[5] This relationship broke down in the summer of 1994, however; Miličić resigned from his position in the SPO leadership, accusing Drašković and his wife of using the party for personal financial gain.
The SPO and the Democratic Party joined forces in the opposition Together (Zajedno) coalition prior to the 1996 Yugoslavian parliamentary election.
In the same period, Miličić indicated that he would favour Milan Panić as a united opposition candidate in the 1997 Serbian presidential election.