David Cameron has told supporters the Conservatives are "building a Great British revival" as he launches the one year countdown to the general election.

In an email to party members, the Prime Minister said the message that the Tories are "turning Britain around" will be "clear, consistent and unrelenting" over the next 12 months.

He calls on them to rally and "back the plan that is turning our country around".

" The General Election is one year away," he said in the email. "For each of those 365 days, the Conservatives have one clear message: we are the team that is turning Britain around.

"We have set out a serious, long-term economic plan: reducing the deficit, cutting income taxes, backing business, capping welfare, reducing immigration, delivering the best schools and skills - and that plan is working for families across our country.

"The deficit has been cut by over a third. Our economy is now one of the fastest-growing in the developed world. 1.5 million more people are now in work. Immigration is down. Welfare has been capped. And something I'm very proud of: today 250,000 fewer children are being taught in failing schools.

"All this means more peace of mind for families, more young people with the chance to get on in life, and more financial security for people across our country.

"From the ashes of the Great Recession we are building a Great British revival.

"But make no mistake: all this is at stake a year from now. Labour's only plans are for more spending, more borrowing, more debt - more of the same that got us into the mess. They would ruin the progress that has been made.

"So our message is clear, consistent and unrelenting: the Conservatives are the ones with the long-term economic plan that is working. If we want to continue this Great British revival, and keep on turning our country around, we've got to keep working through this plan.

"That's why today, I'm asking you to back the plan that is turning our country around."