For over 30 years the Islamic Republic has resisted widespread condemnation, sanctions, and sustained attacks by Iraq in an eight-year war. Many policy-makers today share a weary wish that Iran would somehow just disappear as a problem. But with Iran's continuing commitment to a nuclear programme and its reputation as a trouble-maker in Afghanistan, Lebanon and elsewhere, this is unlikely any time soon. The slow demise of the 2009 'Green Revolution' shows that Revolutionary Iran's institutions are still formidable.

This is the definitive history of this subject, from one of the world's principal experts.