A direct line connects the United States-led campaign against Iraqi insurgents in 2004-07 and the war being fought today.
Islamic State's spreading influence in a range of countries makes the military efforts of the United States-led coalition look almost irrelevant.
The wave of support for Jeremy Corbyn in the race to be Labour Party leader reflects a generation's search for a path beyond neoliberal austerity.
A sixth letter from Islamic State territory reveals elements of the group's thinking about current international developments.
British pilots are revealed to have been engaged in attacks on Islamic State in Syria. The government plans to make this role explicit and direct. What will be the consequences?
After months of bombing by the United States and its allies, Islamic State has survived and even expanded. Its unique character explains why.
The massacre of tourists in Tunisia's coastal resort of Sousse reveals Islamic State's intention to target Britain. There is more to come.
A single day's armed attacks reflect the intensity of the Islamic State war and are an augur of more to come.
The UK's military focus is shifting to remote-control warfare using armed drones. But the move is surrounded by a wall of secrecy.
A Vatican document links a hot planet to world poverty and the need for change. Its immediate impact may be on the United States presidential race.
The resilience of Islamic State a year after its breakthrough makes an escalation of the current war inevitable.
The United States military at last shows some awareness of how hard the current conflict will be, and how deep it will have to go.
