Ukraine's leader has accused Russia of declaring war on his country and warned the nation was on the "brink of disaster". Appealing to the international community for help Prime Minister Arseniy Yatsenyuk said: "This is the red alert, this is not a threat, this is actually a declaration of war to my country." Ukraine has mobilised its military and called up all its reserves after Russia gave the go-ahead to send more troops into the country, in what has become the biggest confrontation between Moscow and the West since the Cold War. Gunmen surround Ukrainian military base Suspected Russian troops have surrounded a Ukrainian military base It came amid warnings the deepening crisis is just "a pace away from catastrophe", where the smallest act could take it "over the edge". The US Secretary of State John Kerry has condemned Moscow's "incredible act of aggression" in Ukraine, and warned of "very serious repercussions" including sanctions to isolate Russia economically. "You just don't in the 21st century behave in a 19th century fashion by invading another country on a completely trumped up pretext," he told the CBS programme Face The Nation. Nato's Secretary General Anders Fogh Rasmussen has called on Russia to de-escalate tensions. "What Russia is doing now in Ukraine violates the principles of the United Nations charter. It threatens peace and security in Europe," he said. Gunmen surround Ukrainian military base Ukrainian soldiers have blocked the entrance to the base with a tank In response to the military action in Ukraine, Britain and France have pulled out of preparations for a summit of world leaders in the Russian resort of Sochi in June. UK Foreign Secretary William Hague, who is flying to the Ukrainian capital Kiev, said the country's sovereignty and territorial integrity had been "violated". He said: "Our response is diplomatic and peaceful and it should be. That is our response but it will be a very united diplomatic response and not just from the Western world, I think, but from many other countries in the world and that is something that Russia will have to think hard about." Ukrainian Canadians rallying at Toronto Russian consulate The good, the bad and the ugly on Ukraine Ukraine mobilizes for war Zakaria: Russia unlikely to invade Crimea region Russian Military Surround Ukrainian Military Base in Crimea Ukraine orders full military mobilisation over Russia moves Ukraine in a state of war and uncertainty Obama Makes 90-Minute Phone Call to Putin on Tension in Ukraine Kerry: 'All Options Are on the Table' to Hold Russia Accountable in Ukraine John Kerry: Repercussions For Putin 'Act Of Aggression' Obama expresses deep concern to Putin on Ukraine Putin calls for use of troops in Ukraine US to Russia: Withdraw Forces from Ukraine John Kerry: Russian action a 'brazen act of aggression' Ukraine calls up reserves, wants forces combat-ready as soon as possible Harper recalls ambassador from Moscow as Canada joins US in pulling out of ... Obama on Ukraine: The US is 'deeply concerned' Ukraine crisis: What next for both sides? Why is Russia moving so fast? Hundreds of gunmen surround Ukraine military base Rubio Urges Decisive Action Over Russian Military Move Against Ukraine Stephanopoulos asks Kerry: 'Any indication at all' that Putin is listening to Obama ... Putin's dangerous misadventure: A 'Greater Russia' or a 'Great Russia?' Putin keeps military option open Russia launches 'propaganda' war over Ukraine Russia Vladimir Putin Crimea Un Ukraine G8 Summit John Kerry Politics News Crimea, West Crimea, West Ukraine, West Crisis Ukraine, Reuters, West Crisis Crimea, Ukraine Crisis, Crimea Crisis, Ukraine, Russia, Vladimir Putin, Crimea, Un, Ukraine, G8 Summit, John Kerry, Russia, Crimea military, Russian Troops Crimea, Putin Crimea, Putin Ukraine war, Ukraine Russia war, Ukraine, Crimea Russia troops,2014,video,live,news Russia, Crimea, Nato, Vladimir Putin, Ukraine, Putin, Ukraine Protests, World News Russia, Crimea, Crimea Russia, Vladimir Putin, Un, Putin, Ukraine, Ukraine Protests, World News Russia, Crimea, Russian Troops Crimea, Putin Crimea, Putin Ukraine, Ukraine Russia, Ukraine, Crimea Russia, Vladimir Putin, WorldPost News, Oleksander Turchinov, Putin, Putin Obama, World News Crimea, Russian Troops Crimea, Putin Ukraine, Ukraine Russia, Russia Crimea, Russia Ukraine, Crimea Russia, Reuters, Vladimir Putin, WorldPost News, Oleksander Turchinov, Putin, Putin Obama, World News Crimea, Russia Ukraine, Russia Warships Ukraine, Crimea Tensions, Ukraine Russia, Ukraine Russia Warships, Ukraine Crisis, Crimea Crisis, World News

• published: 02 Mar 2014
• views: 220890