Nato secretary general Jens Stoltenberg at  a press conference  in Brussels on Tuesday. “I will not speculate on the motives but this does not look like an accident,” he said. Photograph: Laurent Dubrule/EPA

Nato general secretary Jens Stoltenberg rejected claims by Russia that its incursion into Turkish airspace last weekend was accidental, amid claims t(...)

A frame grab taken from footage released by Russia’s Defence Ministry on Monday, shows airstrikes carried out by the country’s air force in Syria. Photograph: Reuters

Nato’s secretary-general has rejected Moscow’s claim that its military incursion into alliance airspace over Turkey was not intentional or important, (...)

A frame grab taken from footage released by Russia’s Defence Ministry on Saturday. Photograph: Reuters

Russian jets hit Islamic State targets and other rebel groups in Syria on Saturday, on a fourth day of air strikes by Moscow in support of president (...)

US secretary of defence Ashton Carter criticising Russian airstrikes in Syria during a press briefing at the Pentagon in Washington, DC, September 30th, 2015. Photograph: Saul Loeb/AFP/Getty Images

Russia launched air strikes in Syria on Wednesday in the Kremlin’s biggest Middle East intervention in decades, but Moscow’s assertion that it had hi(...)

Yevgeny Yerofeyev lies on a bed at a hospital in Kiev yesterday. Ukraine claims Yerofeyev is one of two Russian special forces soldiers captured in eastern Ukraine. Photograph: Roman Pilipey/EPA

Ukraine has denied it is preparing a prisoner swap that would see two alleged Russian special forces soldiers return home, after a separatist leader i(...)

Armed people and military trucks are seen near a checkpoint outside a building on the territory controlled by the self-proclaimed Donetsk People’s Republic in Donetsk, eastern Ukraine, November 12, 2014. Photograph: Maxim Zmeyev/Reuters

Ukraine said on Wednesday it was redeploying troops in the east because of fears that separatists will launch a new military offensive, despite Russia(...)

Much of the fighting in eastern Ukraine has been on the border with Russia, which Ukrainian government forces want to safeguard to prevent any influx of fighters and military hardware from Russia. Photograph: Roman Pilipey/EPA

Nato secretary general Anders Fogh Rasmussen and Ukrainian prime minister Arseny Yatseniuk discussed possible Western alliance support for Ukraine’s d(...)

Ukraine’s president Petro Poroshenko aims a rifle during his visit to a demonstration of new weapons for the Ukrainian armed forces at a military base outside Kiev yesterday. Photograph: Reuters

A Ukrainian push to dislodge pro-Russian rebels from the site of the downed Malaysian airliner further complicated plans for an investigation today a(...)

Armed men, believed to be Russian servicemen, take cover behind an armoured vehicle as they attempt to take over a military airbase in the Crimean town of Belbek near Sevastopol yesterday. Photograph: Shamil Zhumatov/Reuters

Russian forces gathering on the border with eastern Ukraine may be poised to invade, the White House warned today, as the government in Kiev said t(...)

Holidaymakers enjoying the sun were startled yesterday when the world’s largest hovercraft landed in their midst. The vessel was participating in military maneuvers.

Holidaymakers near the Russian port city of Kaliningrad were startled yesterday when a giant military hovercraft landed in their midst on a beach i(...)