(Once again, this comes to you courtesy of the excellent Sweetness and Light.)
The key section:
Last year, it was after another khalvat that Ahmadinejad announced his intention to stand for president. Now, he boasts that the Imam gave him the presidency for a single task: provoking a "clash of civilisations" in which the Muslim world, led by Iran, takes on the "infidel" West, led by the United States, and defeats it in a slow but prolonged contest that, in military jargon, sounds like a low intensity, asymmetrical war.
In Ahmadinejad’s analysis, the rising Islamic "superpower" has decisive advantages over the infidel. Islam has four times as many young men of fighting age as the West, with its ageing populations. Hundreds of millions of Muslim "ghazis" (holy raiders) are keen to become martyrs while the infidel youths, loving life and fearing death, hate to fight. Islam also has four-fifths of the world’s oil reserves, and so controls the lifeblood of the infidel. More importantly, the US, the only infidel power still capable of fighting, is hated by most other nations.
According to this analysis, spelled out in commentaries by Ahmadinejad’s strategic guru, Hassan Abassi, known as the "Dr Kissinger of Islam", President George W Bush is an aberration, an exception to a rule under which all American presidents since Truman, when faced with serious setbacks abroad, have "run away". Iran’s current strategy, therefore, is to wait Bush out. And that, by "divine coincidence", corresponds to the time Iran needs to develop its nuclear arsenal, thus matching the only advantage that the infidel enjoys.