European Commission president Jean-Claude Juncker: said pooling military capability would demonstrate EU member states’ determination never to go to war against each other. Photograph: Sergio Perez/Reuters

European Commission president Jean-Claude Juncker has said a common European army would be a timely deterrent against further Russian aggression on th(...)

 The meeting in London takes place in the wake of Lakhdar Brahimi (centre) announcing that he is stepping down as UN envoy for Syria. Photograph: EPA

In a bid to revive the diplomatic option for resolving the Syrian conflict, US secretary of state John Kerry is to meet European and Arab counterparts(...)

The UN’s main responsibility is to maintain international peace,  not to protect citizens from their rulers. Photograph: Gettty Images

The United Nations Security Council is, in many ways, an affront to democracy. It is after all, a self-appointed club of the strong and mighty with oc(...)

Nato general secretary Anders Fogh Rasmussen at a defence ministers’ meeting in February. The US share of Nato spending has risen from 63 per cent in 2001 to 77 per cent today. Photograph: Getty Images)

Next December, the European Union will have a special summit meeting devoted to defence matters. This is an important event because European countries(...)