By Kathryn Westcott
BBC News website
The execution of Saddam Hussein has provoked mixed reactions around the world and focused attention on varying attitudes towards capital punishment.
The European Union has used Saddam Hussein's trial and conviction to reiterate its deeply entrenched opposition to the death penalty. It led the way in calling for the former Iraqi leader not to go to the gallows.
The EU opposed the death penalty throughout Saddam's trial
However, while the EU maintained its firm position, some of its member-countries stepped out of line by applauding the death sentence when it was passed in November.
The Czech Republic's Prime Minister, Mirek Topolanek, welcomed it, describing it "an act of justice" and a warning to other dictators. Poland's President Lech Kaczynski described it as "the only possible outcome".
According to recent polls, the populations of both countries are supportive of capital punishment.
Poland abolished capital punishment in 1997, following a moratorium on executions imposed in 1988. But polls carried out a few years ago suggested that 70% of the population supported capital punishment.
In the summer of 2006, Poland clashed with the EU after Mr Kaczynski called for a Europe-wide debate on capital punishment. He wanted the EU to either change its policy or allow the issue to be a matter for an individual country's legislation.
Turkey abolished the death penalty under EU pressure
Abolition of the death penalty is a requirement for countries seeking EU membership - Turkey has recently abandoned it - and officials say that members that reintroduce it will be punished.
Most Western European countries abandoned the death penalty in the 1960s while Eastern European states did so in the 1990s.
Russia, a member of the Council of Europe, has yet to formally abolish the death penalty - although it has had a moratorium on capital punishment since 1990. Belarus has applied to become a member of the council but will have to abolish the death penalty before it can do so.
The US and Japanese governments - both of which exercise capital punishment - welcomed the former Iraqi leader's sentence when it was passed.
Japan executed four prisoners on 25 December, the first hangings in more than a year. At least 80 prisoners remain on death row.
The death penalty had been put on hold since September 2005 after the former justice minister refused to sign off any more executions, saying they went against his Buddhist beliefs.
The new justice minister, however, used the latest hangings as an opportunity to remind the world that more executions were to come and that the vast majority of the public were supporters of the death penalty.
According to official government statistics, some 80% of the country's population support capital punishment. Nonetheless, there is a small but increasingly vociferous abolitionist movement in the country.
The US stands alongside China, Saudi Arabia and Iran as carrying out the greatest numbers of executions per year. According to Amnesty International 94% of the 2005 executions took place in those countries - with about 80% of those taking place in China.
Although a majority of Americans back the death penalty, polls suggest public support is decreasing while the alternative sentence of life without the possibility of parole is gaining in popularity.
Polls show that US public support for the death penalty is decreasing
The number of people on death row in the US has continued to decline, falling to 3,344 by October 2006, according to the US Death Penalty Information Center. In its annual report, it says that the number of convicts on death began to fall in 2000 after 25 years of steady increases.
It also finds that executions dropped to their lowest in 10 years, with 53 carried out this year, 12% less than last year.
Challenges to the lethal injection process have resulted in executions being stayed in some states in 2006. They are currently suspended in Maryland, Florida and California.
About a dozen US states do not have the death penalty.
China is the world's leader in executions.
No one knows how many people are put to death in the country each year but Amnesty International estimates that in 2005, it carried out an estimated 1,770 executions and sentenced nearly 4,000 people to death.
This year, the government took steps to reform the process by restoring to the Supreme Court the right to review all death sentences.
The move followed a series of embarrassing miscarriages of justice. These were the result of the lower courts being given the right to approve the death sentence in the 1980s.
A new law comes into affect in January 2007.
Capital punishment has a long history in China, and there is no indication the country is ready to give it up.
Most Muslim countries retain capital punishment, with Iran and Saudi Arabia carrying out the most executions.
Iraq's government has released video of criminals being hanged
Methods of execution in Islamic countries vary and can include beheading, firing squad, hanging and stoning.
In some countries public executions are carried out to heighten the element of deterrence.
In 2006 in Iran, a group of human rights defenders, mostly women, began a campaign to abolish stoning to death, after reports that a man and woman had been stoned to death in Mashhad, despite an official moratorium on such executions.
Amnesty maintains that the trend toward abolishing the death penalty continues to grow.
In 2006, the only country to abolish the death penalty was the Philippines, after overwhelming votes in both houses of its legislature.
That leaves 69 countries that retain and use the death penalty.