Election, Hun Sen, Cambodia opens with expectations to win.

Polls are open in the parliamentary election of Cambodia, the Conservative government of Prime Minister Hun Sen is widely expected to win the most seats.

His Cambodian People's Party (CPP), the face of the opposition, led by Sam Rainsy - Back from self-imposed exile after a royal pardon in July.

Mr Rainsy himself ineligible to stand. But the recent return of his strong campaign of opposition.

More than nine million people are expected to vote for them.

Hun Sen, 60, has been Prime Minister of Cambodia for nearly three decades. He was one of the leaders of Asia's longest serving and have expressed a desire to stay in power for another decade.

CPP, which enjoys strong support in rural areas who currently have 90 of 123 seats in parliament and has been increasing over the years.

This is due in part because Hun Sen has been widely praised by achieving economic growth after the destruction caused by the regime of the Khmer Rouge in 1970, which was responsible for one of the worst. The murder of the 20th century.

Cambodian opposition National Rescue Party (CNRP) - led by Mr Rainsy - the goal is to win a seat with the promise of political change.

In 2010, Mr. Rainsy, 64, was sentenced to 11 years in prison in a series of charges he says were politically motivated.

The opposition Sam Rainsy Party, a merger between the Party and the Human Rights.

Analysts believe that the younger voters may help the opposition in the election.

But CNRP face uphill battle. Most of the country's media are regulated by the government and human rights activists have also pointed out that the election could end up being free and fair.

Election, Hun Sen, Cambodia opens with expectations to win.