Philip Hammond says he would welcome the support of more nations in the battle against Islamist militants in Iraq.
The Foreign Secretary said wider support for efforts currently carried about the US, France and Britain would show the world is "horrified" by what is going in the country.
Kurdish Peshmerga fighters have emerged victorious in the battle for Mosul Dam, but the question is - what will their next move be?
An ITV News team at Mosul Dam was with victorious Kurdish Peshmerga fighters at the complex earlier today.
ITV News joined a Kurdish unit fighting Islamist militants near Irbil and found them using tanks from the 1950s and short on ammunition.