United Kingdom intelligence services have stopped seven terrorist attacks in the past six

The terror spree in France “was the sort of thing we warned about” in planning with the security services but such atrocities meant “you have to go right back to the drawing board” to work out what more steps needed to be taken, the Prime Minister said.

The Government is to recruit 1,900 security and intelligence agents and double spending on aviation security in response to the terror threat from Islamic State.

British intelligence services have foiled seven terror attacks in the past six months, David Cameron has revealed.

World leaders at the summit will observe minute of silence in remembrance of the Paris victims.

He said Britain faced a generational struggle which required more manpower to counter.

This follows the downing of the Russian passenger airliner in Egypt two weeks ago and the United Kingdom belief that it was downed by a bomb, along with Cameron’s comment that ‘there is a significant possibility that ISIL were behind it’.

He said he plans on doubling the amount spent on aviation security over the next five years, which is now around 9 million pounds a year.

The funding will boost the number of aviation security experts who will have the task of regularly assessing security at airports around the world.

Additional security measures put in place at potentially vulnerable airports over the past year will also be reviewed, and the National Security Council will on Tuesday discuss British aviation security policy, the government said.

It will also fund research into screening technology and to detect new threats, the government said. The additional spending will help “combat those who would destroy us and our values” and allow Britons to “continue with our way of life we hold so dear”. The measures will be announced by Cameron later on Monday, according to the Guardian.

The recruitment would increase the staff of intelligence agencies MI5, MI6 and GCHQ by a few 15 percent, according to the Guardian and the Financial Times.

Airports through which a high number of British citizens travel through will be among those targeted for the review. It now spends around £9m a year on aviation security.