Thanks to John in the Reddit room for the heads up.

I said on Tom Woods’ show that the Islamic State, which controlled eastern Syria and western Iraq from June 2014-December 2017, was the size and population
of Great Britain, but that’s wrong. It was the size of the UK, but had a
population of only six million.

I thought I was paraphrasing Patrick Cockburn, but this is what he really said:

“As the attention of the world focused on Ukraine and Gaza, the Islamic State of Iraq and Syria (Isis) captured a third of Syria in addition to the quarter of Iraq it had seized in June. The frontiers of the new Caliphate declared by Isis on 29 June are expanding by the day and now cover an area larger than Great Britain and inhabited by at least six million people, a population larger than that of Denmark, Finland or Ireland.”