Will Iraq mark the emergence of a US dominated new world order, or a step on the road to international anarchy? Andrew Tyrie provides a thoughtful, searching and powerful essay on Western foreign policy and the post-11 September re-ordering of the world.

The conservative position that he stakes out – that both the Bush and Blair foreign policy doctrines will not enhance but imperil our security, whatever the outcome of the crisis – is a persuasive one. The Foreign Policy Centre and the Bow Group are both delighted to open up these arguments for debate.