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.
A confluence of experience, activism, energy and ideas is bringing a radical move towards sustainability ever closer.
The Paris massacre and its aftershocks must also be considered in the context of the larger war being fought in the Middle East and Africa.
A naval-base agreement between two royal states suits both sides. But money, along with security a big part of the deal, could also undermine it.
The close links between American surveillance of Africa and military facilities in England are revealed by campaigners working for non-violent social change.
The growth of secretive floating armouries raises a challenge to maritime security worldwide.
A new naval base in the Gulf reveals both the flaws in Britain's strategic thinking and the limits of its military capacity.
A single incident in the air war against the Islamic State offers a lesson in its character.
Washington hoped for a clean getaway from the two countries it invaded in the early 2000s. The Taliban, like the Islamic State, has other ideas.
Behind the flux of conflict on the ground in Syria-Iraq, all sides are digging in for a long war.