Prime Minister Theresa May has announced she wants to call for a general election on June 8.
She has challenged opposition parties to provide an alternative to the Government's plans for Brexit.
She said the decision was made "with reluctance" but that it was needed to see off uncertainty and make their position stronger when negotiating with the EU.
Speaking at Downing Street, Mrs May said: "I have a simple challenge to the opposition parties.
"You have criticised the government’s vision for Brexit. You have challenged our objectives. You have threatened to block legislation we put before parliament.
"This is your moment to show you mean it. To show you are not opposing government for the sake of it. To show you do not treat politics as a game.
"Let us put forward our plans for Brexit and alternative plans for Government and then let the people decide."
There will be a vote in the Commons on Wednesday on whether to hold the proposed election.
The Labour Party have indicated they will vote in favour of the proposed election, and as have the Liberal Democrats, SNP, Green Party and Ukip.
Labour leader Jeremy Corbyn put out a statement that says: "I welcome the prime minister’s decision to give the British people the chance to vote for a government that will put the interests of the majority first.
"Labour will be offering the country an effective alternative to a government that has failed to rebuild the economy, delivered falling living standards and damaging cuts to our schools and NHS.
"In the last couple of weeks, Labour has set out policies that offer a clear and credible choice for the country.
"We look forward to showing how Labour will stand up for the people of Britain."
Liberal Democrat leader Tim Farron said: “This election is your chance to change the direction of our country.
“If you want to avoid a disastrous Hard Brexit. If you want to keep Britain in the Single Market. If you want a Britain that is open, tolerant and united, this is your chance.
"Only the Liberal Democrats can prevent a Conservative majority.”