Nick Clegg outlined his vision for an "open, confident Britain", where liberal values compete with and defeat extremist arguments, in a speech yesterday.
He called for "smart engagement" with extremists, saying that promoting liberal values was the best way to combat extremism.
"In liberal societies, all of us must defend the freedoms of others, in exchange for freedom for ourselves. In an open society, values compete but do not conflict," the deputy prime minister said.
His speech has been seen as a contrast to a similar speech given by David Cameron last month, where he said 'state multiculturalism' had failed.
The prime minister's comments were particularly controversial as they fell on the same day as a march by the English Defence League (EDL) in Luton - where Mr Clegg chose to make his speech yesterday.