In the old days it would have been a relatively simple matter to have checked Hitler's territorial ambitions. All you'd have needed would have been the 1914 combination of Britain, France and Russia. Indeed, if such an alliance had acted decisively to defend Czechoslovakia in 1938, Hitler might even have been overthrown by his own military. But it was not to be.

It's all very well for us to sit here in the west with our high incomes and cushy lives, and say it's immoral to violate the sovereignty of another state. But if the effect of that is to bring people in that country economic and political freedom, to raise their standard of living, to increase their life expectancy, then don't rule it out.

American Empire- it is an empire that lacks the drive to export its capital, its people and its culture to those backward regions which need them most urgently and which, if they are neglected, will breed the greatest threats to its security. It is an empire, in short, that dare not speak its name. It is an empire in denial.

When bond prices fall, interest rates soar, with painful consequences for all borrowers.

I would say I'm a 19th-century liberal, possibly even an 18th-century one.

Empires, essentially, create order. In their absence, you don't end up with lots of happy, little nation-states full of people sitting around campfires singing John Lennon's "Imagine." What you end up with is civil war, anarchy.

A historian is battling all the time to remember as much as possible.