[2] On 22 January 1991, Božić and other members of this group left the DS to form the Serbian Liberal Party (Srpska liberalna stranka, SLS).
[3] In 1992, the SLS became part of the Democratic Movement of Serbia (Demokratski pokret Srbije, DEPOS), a broad coalition of parties opposed to the Milošević government.
[4] Božić appeared in the sixth position on the DEPOS electoral list for Belgrade in the 1993 Serbian election and was awarded a mandate when the coalition won eleven seats in the capital.
Božić did not automatically receive a mandate by virtue of his list position but was nonetheless included in the DEPOS delegation and took his seat when the assembly met in early 1994.
)[7][8] DEPOS dissolved after the election; Božić joined the SPO, which had been the leading party in the coalition, and became an advisor to its leader Vuk Drašković.
Božić was re-elected to the Serbian parliament in the 1997 election after appearing in the second position on the SPO's list in Palilula; the party won three seats, and he was again awarded one its optional mandates.
On 30 September 1997, Božić presided over an assembly session that removed Đinđić as mayor via a SPO motion supported by the SPS and the far-right Serbian Radical Party (Srpska radikalna stranka, SRS).
"[21] In January 1999, the SPO joined a coalition government in the Federal Republic of Yugoslavia that was led by the SPS, the JUL, and the Socialist People's Party of Montenegro.
[22] A month after his appointment, Božić joined Drašković in representing the SPO in the Rambouillet talks that sought a negotiated end to the Kosovo War.
As deputy mayor of Belgrade, Božić played a prominent role in attempting to ensure that the city's services remained as functional as possible.
[24] In an interview on American television during the bombing, Božić accused NATO of attacking civilian targets and of having created a "humanitarian catastrophe [...] in the very downtown of Belgrade.
In an interview with Romanian television, Božić said that the ceasefire was being offered because the government believed "the terrorists who used the NATO bombings to put pressure on our country are now virtually destroyed.
[33] Slobodan Milošević was defeated by Vojislav Koštunica of the Democratic Opposition of Serbia, a broad and ideologically diverse coalition of parties that did not include the SPO, in the 2000 Yugoslavian presidential election.
Božić sought re-election to the Chamber of Republics in the concurrent Yugoslavian assembly election, appearing in the second position on the SPO's list.
[35] The SPO also lost all of its seats in the Belgrade assembly in the concurrent 2000 Serbian local elections; Božić was defeated in his bid for re-election in Vračar's second division.
[37] The SPO contested the 2003 Serbian parliamentary election in an alliance with New Serbia, and Božić appeared in the fifteenth position on their combined list.
[38] By this time, the entire country had been designated as a single electoral division, and all parliamentary mandates were distributed to candidates on successful lists at the discretion of sponsoring parties or coalitions, irrespective of numerical order.