The men who travelled to Syria with Islamic State hostage Alan Henning praise his commitment to the humanitarian cause in a video tribute they filmed on Christmas Day 2013, a day before his kidnap.
The US carries out its first air strike against Islamic State (IS) militants under a new strategy to defeat the group in Iraq.
World leaders back military measures to help defeat Islamic State fighters in Iraq - but make no mention of the tougher diplomatic challenge in Syria.
The brother of the British man who was murdered by Islamic state militants says his life was about love, not hatred.
The UK will take whatever steps are necessary to combat the Islamic militants responsible for the murder of British aid worker David Haines, the Prime Minister David Cameron says.
When the leader of the free world declares his country is going to war you'd hope his international partners might be reliable. At least for 24 hours. Just to be polite.
Have we learned from 9/11? From my own experience reporting sporadically across the region for over three decades, my fear is that we have not.
With US public opinion increasingly favouring intervention against Islamic State militants, how far is President Obama prepared to go in his speech to the nation tonight?