British PM slams Brexit as "gamble of the century"

British Prime Minister David Cameron on Sunday slammed Britain's likely exit from the European Union (EU) as a "gamble of the century," warning the risks of leaving Europe to the country's trade, jobs and security.

"It's simply not good enough to assert everything will be all right when jobs and our country's future are at stake," Cameron wrote in an article published by the Sunday Telegraph newspaper.

In the article, he urged Eurosceptics to set out a vision outside the EU, describing the offer of Brexit as "a leap in the dark."

The prime minister asked those who want to leave the EU to sort out what relationship Britain would have with Europe in terms of trade, jobs, security and Britain's role in the world.

Cameron said the reconstructing a new relationship after Brexit would face "huge amounts of uncertainty" and would have an impact on investment and trade as well as on jobs and family finances.

On security, he argued that Britain currently has a whole set of arrangements with its European neighbors, and asked the "out" campaign to spell out "how they intend to keep people safe."

In the article, he also demanded that Eurosceptics to answer "the bigger question about our role in the world" outside the EU.

Cameron insisted European countries have to work together to deal with international threats, including the migration crisis, extremism and terrorism.

"They will remain issues if Britain leaves the EU. That doesn't mean we can't do things with NATO or with America, but there is a reason that our NATO allies want us to remain in the EU," he noted.

In the article, the prime minister concluded that "the only certainty of exit is uncertainty" and that "leaving Europe is fraught with risk."

"With so many gaps in the 'out' case, the decision is clearly one between the great unknown and a greater Britain. A vote to leave is the gamble of the century. And it would be our children's futures on the table if we were to roll the dice," he said.

Britain will hold a referendum on whether to remain in the EU on June 23 after Cameron agreed a package of changes to British membership in the EU following two days of marathon talks with leaders of other member states at an EU summit earlier this month. Endit