By the latter part of the twentieth century, the world had become unipolar. The Soviet Empire collapsed even more rapidly than the British one had after the Berlin Wall fell in 1989. China was not yet the force it is today. The US was at the pinnacle of its global power.

That made it all the more unbearable that it came under assault within its own borders by the terrorists of the 9/11 attack in 2001. A reaction was inevitable. We saw last time how it invaded Afghanistan, but that seemed barely justified since there’s no evidence of Afghan involvement in the attacks. By 2003, the US as ready to turn its military aggression against another nation in what it called its ‘war on terror’, a strange notion of waging war against an abstract noun.

Concretely, its new target was Iraq. Sadly, however, Iraqi contact with the 9/11 attacks had proved as difficult to substantiate as Afghanistan’s. But the US put together an international coalition for war there, as it had once before in 1990-91, to throw Iraqi invaders out of Kuwait.

This though would be much smaller coalition, with fewer nations prepared to support President George ‘Dubya’ Bush’s new campaign. It didn’t help that it looked suspiciously at least partly aimed at completing the work of his own father, George HW Bush, who’d been president during the previous war on Iraq, by bringing down the dictator Saddam Hussein.

One of the nations right alongside the US was Britain. That would leave a lasting mark on Tony Blair’s legacy. Which might as a result not have been quite as glowing as he might have liked.

Our subject for next week.

Illustration: Government buildings burning in Baghdad following a US airstrike in March 2003. Photo Ramzi Haidar / AFP / Getty from ‘The Atlantic’

Music: Bach Partita #2c by J Bu licensed under an Attribution-NonCommercial-No Derivatives (aka Music Sharing) 3.0 International License