INFOGRAPHICS - UK set for Dec 12 polls

LONDON (AA) - The U.K. is going to the polls for third time in four years.

Some 3,322 candidates will compete in 650 constituencies in the election where 46 million voters will cast their votes.

Any party winning 326 or more seats in the House of Commons will form a government on its own.

At least 3,100,000 new voters registered since the election announced in October. Two million of those are under 35 years old, while 1 million under 25. Younger voters are expected to make an impact on the election result.

The main competition is expected to be between Boris Johnson's Conservative Party and Jeremy Corbyn's Labour Party.

Current opinion polls show Tories in the lead with 43% and Labour at 32%.

Liberal Democrats follow in third with 13% and the Brexit Party and Scottish National Party hold 4% each.

The Labour Party will not compete in Northern Ireland, where Tories are not expected to be successful either.

The race in Northern Ireland is between the unionist and royalist Democratic Unionist Party (DUP) and the Irish nationalist Sinn Fein.

Sinn Fein traditionally does not take seats won in the House of Commons.

Brexit, the National Health Service (NHS), crime rates, the economy and immigration are the main issues that will determine the vote.

The Conservative Party have based their election campaign on Brexit, pledging to leave the EU on the Jan. 31 deadline granted by the bloc last September.

The main opposition Labour Party has pledged a new withdrawal agreement with the EU and a confirmatory referendum on the deal.

Liberal Democrats and the SNP have promised to revoke article 50 and cancel Brexit, while the Brexit Party has vowed to leave the bloc without an agreement.

If the Conservative Party wins a majority to form a government on its own, a Jan. 31 Brexit will become increasingly likely.

However, if the Brexit Party wins seats in the parliament, a no-deal Brexit may become reality.

The Labour Party pledges to improve the NHS, increase minimum pay, abolish tuition fees, put an end to the privatization of public and rail transport and ensure free broadband internet for all.

The last election was held in 2017 when Conservatives called for a snap ballet in order to secure a higher majority. However, they lost the parliamentary majority and had to form a minority government with the support of Northern Ireland’s DUP.

In 2017, opinion polls kept Tories at 44% and Labour at 36%. However, Tories won 42.4% while Labour took 40%.

Though opinion polls failed to predict the 2015 election as they showed the two parties neck and neck at 34%, Conservatives won 36.9% and Labour 30.4%.

Boris Johnson is facing Muslim candidate in his own constituency in Uxbridge:

Johnson won in 2017 with a 10% majority in Uxbridge, though the Labour candidate has risen by 13.6%.

If Labour can increase votes by 5% more, Johnson risks losing his seat and becoming the first ever British premier to lose parliament office while serving.

Johnson's rival is Labour Party Muslim candidate Ali Milani.

Attempting to reach out to locals going door-to-door knocking on doors in Uxbridge, where Johnson failed to put on an effective campaign.

If Liberal Democrats and Greens vote tactically for Milani, Johnson can lose his seat.

Up to 2 million Muslim voters will impact the results in 31 constituencies where the winning candidates' majorities were low in 2017.

Muslim voters can also change the result in 26 other constituencies, while Muslim groups urge voters to decide for whom to vote by keeping in mind parties' policies around Islamophobia. This will be a factor against the Conservatives who have failed to launch an investigation into such problems within their own party.

According to the "first-past-the-post" system in the UK, the candidate who receives the highest number of votes in any of the 650 constituencies wins the election.

Theoretically, a party who would come second in all constituencies would not be able to win a single seat in the parliament despite a high level of votes it receives nationwide.