Defence Secretary Philip Hammond has said the government will give technical assistance to Iraq, but ultimately this is an "Iraq problem."
Mr Hammond, speaking at RAF Odiham in Hampshire said:
We are going to give all the support we can to the Iraqi government, technical support and advice.
But the Foreign Secretary has made it clear we don't have any intention of putting British boots on the ground.
This is an Iraqi problem and has to be solved in Iraq. But we'll provide all the assistance we can from a technical standpoint.
The Foreign Secretary has been clear on the threat of Isis, but he has ruled out the prospect of any UK military involvement in the crisis.
Iraq’s foreign minister, Hoshyar Zebari, is a natural diplomat. Polite, immaculately dressed, and blessed with a great memory.
Isis has paraded military equipment in Mosul it captured from when the Iraqi army fled in what some see as a "nightmare scenario."