He took part in a live video link-up with students from Britain, India and the Palestinian Territories who discussed faith and then questioned Mr Blair about his own faith and role as Middle East peace envoy.

Covering around 3,500 students in 35 schools across 10 countries, the Face To Faith initiative aims to get youngsters talking in order to boost understanding.

'If you look round the different parts of the world and you look at conflicts, I would say a very large percentage of them have a religious dimension or a faith dimension to them,' Mr Blair said. 'So to get young people at an early age to be comfortable with people of a different faith is extremely important.'

Other countries with schools taking part in the scheme are Pakistan, Lebanon, Singapore, Indonesia, Thailand, Canada and the United States.

Organisers hope schools in India and Pakistan could hook up via the project in the coming months - and even Israeli and Palestinian students.

Mr Blair - who famously didn't 'do God' when in office - predicted that the 21st century could be dominated by 'fundamental religious ideology' but said religion should not be seen as a 'divisive force'.

'As the world pushes everyone together, it's important religion doesn't become a means of pulling them apart,' he said.

The project is being organised by the Tony Blair Faith Foundation, which Mr Blair - who converted to Catholicism soon after leaving office in 2007 - established to boost understanding of religion. -- AFP