She was wooed online with 'lovey-dovey' messages by a Coventry-born Isis fighter.
They say the revocation of their British citizenship is 'illegal'.
The soldier was caught by an explosion on Thursday.
It comes as major advertiser threatens to pull money from Google and Facebook over extremist content.
Minister says rule of law 'fundamentally distinguishes us from terrorists'.
They were part of the same group as 'Jihadi John'.
10 December will be declared a national holiday to be celebrated every year.
He says jihadis 'hate everything that Britain stands for'.