David Cameron has said the UK is ready to “play its part” in fighting Islamic State, which he called an “evil against which the whole world must unite”.
Speaking at the UN in New York, the prime minister said “past mistakes” must not be an “excuse” for inaction.
He spoke as US and Arab jets continued bombing Islamic State (IS) targets in Syria, after attacks began on Tuesday.
The UK cabinet will discuss plans for air strikes against IS in Iraq later, with Parliament due to vote on Friday.
In his UN speech, Mr Cameron said the Iraqi government had made a “clear request” for international military assistance against IS, which has taken control of large parts of Iraq and Syria in recent months.
He said this provided a “clear basis in international law for action”.
Read the full story here.