Anders Fogh Rasmussen confirms military alliance to deploy forces at new bases in post-Soviet states.
Security expert Jarno Limnell looks at the challenges facing Nato as cyber become part of all conflicts
Oana Lungescu calls Moscow's deployment of up to 20,000 troops near Ukrainian border 'dangerous'.
Killing of American major-general by lone gunman marks highest-ranking death in Afghanistan War
1,350 troops, 350 armoured and other vehicles to join Nato's 'Exercise Black Eagle'
Russian Defence Ministry asks Kiev for explanation as to why Ukrainian plane flew so near MH17.
Radek Sikorski shakes alliance with US by claiming it to be worthless and 'bullshit' in leaked conversation.
BREAKING NEWS: Military alliance chief says mobilisation of Russian troops 'very regrettable step backwards'
Five foreign servicemen killed by own allied helicopters according to Taliban and police reports.
Poland's foreign ministry Radoslaw Sikorski says Moscow will use the two helicopter carriers to threaten its neighbours
Estonian military chief warns that Nato must re-align its capabilities after Iraq and Afghanistan.
Russian markets are set for their best week since March after President Vladimir Putin backed Ukraine's presidential election.
Russian president takes softer line on Ukraine crisis and urges separatists' autonomy referendum postponed
Russia's defence minister says military activities of Nato and US near Russian borders 'unprecedented'.
Rocky planet found by Kepler telescope excites astronomers with water potential
One Ukrainian reported killed in operation to re-take police station, while Russia claims that USA has mercenaries on the ground.
Afghan President's refusal to sign foreign troop deal has crippled the economy with uncertainty
Kremlin publishes English translation of Russian president's speech on Crimea
As Crimea goes to the polls, an army of pro-Russian cyber-warriors has attacked and disabled Nato websites.
Five Afghan Army soldiers killed and dozen injured as jets pound Logar province
Nato's top military commander has declared that no contingency plans have been made by US or NATO if Russia invades Crimea.
Asmatullah Shaheen killed in ambush as he drove through village.