Serbian President Boris Tadic was re-elected in a second round ballot on 3 February, defeating his nationalist rival Tomislav Nikolic.
Mr Tadic ran an aggressive campaign on Kosovo
The election was held at a sensitive time, as the largely ethnic Albanian province of Kosovo appeared set to declare independence.
The son of a communist-era dissident, the 50-year-old Mr Tadic is a life-long political activist.
He was convicted for his opposition activities while studying psychology in Belgrade in the then-Yugoslavia.
In the mid-1990s he fought the nationalist regime of Slobodan Milosevic, whose rule was eventually ended in 2000.
He was telecommunications minister in the first post-Milosevic government.
Mr Tadic then quickly gained a reputation as a leading pro-Western reformer, taking over from assassinated Prime Minister Zoran Djindjic as leader of the centre-left Democratic Party in 2004.
Later that year he defeated Tomislav Nikolic in a presidential election run-off, despite losing in the first round.
He has now repeated that feat.
After finishing second, with 35.4% to Mr Nikolic's 40%, in the first round of the election on 20 January, he was re-elected by more than 50% of the votes in the 3 February run-off.
During his election campaign, Mr Tadic pledged to speed up Serbia's accession to the European Union, warning that the country risked isolation.
At the same time, he ran an aggressive campaign on Kosovo, promising that he would never give up the southern province.
"I will never accept the independence of Kosovo... we will do everything for Kosovo to stay in Serbia," Mr Tadic said during a symbolic visit to Kosovo on the final day of campaigning.
The move was aimed at projecting him as a defender of Serbia's national interests and also at drawing votes from Mr Nikolic, analysts say.
Mr Tadic's election slogans were "For a strong and stable Serbia" and "Let us conquer Europe together".
However, his coalition partner, moderate nationalist Prime Minister Vojislav Kostunica, refused to back him in the run-off.
Mr Tadic was born in the Bosnian capital Sarajevo in 1958. He is married and has two children.