One of the questions facing David Cameron as he returns from his holiday.
We must not find ourselves wondering how this humanitarian crisis spiralled further and further out of control.
The destruction of this caliphate must come from a Muslim-led force.
Downing Street is wrong to reject demands for a recall on the grounds that "our focus is humanitarian support".
The Kurdistan Region needs more than words of solidarity or humanitarian assistance.
Iraq is rapidly spiralling into an unprecedented situation - and the international community is standing by.
Last summer's defeat over Syria has made the PM wary of intervention.
It won’t be quickly forgotten that the strongest condemnation of the killings in Gaza came from Baroness Warsi, a Tory politician.
The leader of Isis, Abu Bakr al-Baghdadi, has declared himself “Caliph Ibrahim”, thereby appropriating an Islamic title with a long, chequered history.
Channel 4 News’s international editor returns to a country where she has strong memories and friendships but finds her movements hampered by customs officials.