How do young recruits to Islamic State from the west see their campaign? A fifth personal communication from inside the group.
The combination of expensive military projects at a time of austerity should, after the election on 7 May, create the space for an overdue rethink of the UK's international security policy.
The pace of reaction to the global climate emergency is increasing, and vulnerable states in the global south are often in the lead.
The drowning of would-be migrants attempting to reach Europe is a humanitarian tragedy that reflects a growing crisis of environmental security.
The experience of fighters on opposite sides of the "war on terror", marking the 700th column in this series.
A powerful coalition seeks to destroy the 'caliphate'. But IS draws confidence from key assets beyond the reach of a blunt military strategy.
An intense battle for the Iraqi city of Tikrit, north of Baghdad, hints at the background and future of the wider conflict.
A fourth personal communication from the heart of territory where Islamic State holds sway.
The Israeli prime minister's purpose in Washington was to consolidate a vital and largely unrecognised political-religious alliance.
The post-9/11 wars In Afghanistan and Iraq never really ended. But in the campaign against Islamic State, their maps are having to be redrawn.
The challenge of jihadism in Iraq, Syria, Libya and elsewhere is reinforcing the United States's embrace of "remote control" warfare.
The containing of an explosion on the Hizbollah-Israel frontier has politics to thank. But next time could be different.
