As more countries agree to allow women to serve in combat roles, the issue remains divisive in the UK
The big tech companies must work with governments to stop terrorists, says head of UK spy agency
'If you do not respond immediately to my orders you will be shot down', an RAF pilot said
Veterans argue signing up offers young people a better life, but campaigners say it's unethical and exploitative
PM makes surprise visits to Cyprus and Kabul, where he met new Afghan president Ashraf Ghani
Former PM joins calls for UK to consider deploying the army to fight Islamic State
Government accused of sending 'mixed messages' about their mission against Islamic State militants
Nato leaders will discuss Ukraine and the rise of the Islamic State – but what will the summit achieve?
Tories and Lib Dems had been at odds on on new powers to seize passports of returning jihadist fighters
Set-back for US weapon which would be able to hit a target anywhere in the world within one hour
White House said those responsible were 'real patriots', as human rights groups call for 'legal consequences'
Experts say Malaysia Airlines flight MH17 is likely to have been downed by a Buk missile launcher. But who fired it?
UK's £185m unmanned Taranis drone completes 'full stealth' flight above the Australian desert
Intelligence committee chief Malcolm Rifkind warns of terrorists with ‘devilish technical skill’
By using social media, self-proclaimed Caliph Ibrahim insures the flow of recruits from Britain and Europe
Pressure builds on Barack Obama as more rumours swirl about the motives of Bowe Bergdahl
US soldiers' brains could be hooked up via the internet so they can act on orders without thinking
'War on terror' changes gear: Obama is due to explain his new foreign policy at West Point today
Introduction of brutal Sharia law means it’s time to get out - even if Sultan is buddies with Prince Charles
Some analysts argue that the best way out of the crisis would be to split Ukraine between east and west