She told how she was one of 96 Yazidi girls kidnapped when their towns and villages fell to the fanatics.

Now these teenagers wait in terror to be sold into slavery or forced into marriage with militant Islamists.

‘I know this exact number because I hear them talking,’ said Nisreen. ‘We are sure they have sold us. We do not fear for our lives but for our dignity as women.’…

The husband of another teenage woman, heavily pregnant, held captive by the IS told me how she would rather the US bombed her prison – with her inside – than be handed out like a piece of property to an extremist fighter.

She said: ‘Let those jets come to bomb us and save us from this situation by killing all of us.’ She added death would be a better fate than to ‘be forced off with a strange man.’