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 containing of an explosion on the Hizbollah-Israel frontier has politics to thank. But next time could be different.
The return of United States-Russia tensions marks the end of the post-cold war. It also heralds a bonanza for companies eager to supply deadly new arsenals to powerful states.
Western states express optimism about the anti-jihadist campaign in Syria-Iraq. A report from a high-level meeting in London offers another view.
A third letter from an Islamic State operative based in an area of Syria ruled by the movement.
