Analysis: When would Russia be most likely to invade Ukraine?
Hard or soft ground? Before or after the Olympics? An expert has broken down President Putin's timeline were an offensive to take place.
Ukraine
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Russia Could Russia make UK pay for Ukraine support with cyber attacks?
Although the National Cyber Security Centre is unaware of any specific threats, British businesses are being warned to prepare.
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USA US sending troops to Poland, Germany and Romania as Russia tensions rise
The move comes amid stalled talks with Russia over its military build-up near Ukraine's borders.
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Russia Boris Johnson uses Ukraine trip to urge Russia to 'step back' from potential 'military disaster'
Mr Johnson said intelligence shows "preparations for all kinds of operations that are consistent with an imminent military campaign".
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Russia NATO has a gun held to its head by Putin and must respond, former alliance deputy commander says
A former NATO Deputy Commander told Forces News now is the time to tell Russia "we're prepared to fight" for the alliance.
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Russia Russia conducting military exercises on a scale never seen before, military chief warns
Admiral Sir Tony Radakin said the drills are part of "a pattern of coercion and intimidation" against the West.
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Nato Troops, jets and warships: UK considers new offer to NATO amid Russia tensions
Boris Johnson says a military package bound for Eastern Europe would "send a clear message to the Kremlin".
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Russia Boris Johnson to visit Russia-Ukraine region and speak with Putin
The Prime Minister has already asked UK defence to consider further military options in the region amid rising tensions.
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World Ukrainians advised to pack for invasion in TV bulletins
An 'alarm suitcase' should contain food, documents, a first aid kit and condoms, says the advice
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Russia Biden: Russian invasion of Ukraine distinct possibility next month
Moscow has denied plans to invade its former Soviet neighbour, despite the build-up of 100,000 Russian troops on its Ukraine border.
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Army UK could deploy more forces to Baltic States amid Russia tensions
Which regiments would be deployed by the UK isn’t clear, with speculation it could be personnel from the new Army Ranger Regiment.
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Russia Calls from Eastern Europe suggest 'words only' cannot repel Russia
Estonia's Deputy Chief of Defence fears Moscow isn't heeding NATO warnings not to invade Ukraine.
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Russia Warning Russian operatives may already be in Ukraine ahead of potential invasion
The Defence Secretary said there were individuals already in Ukraine "linked to the Russian state in ways that are not conventional".
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Politics PM: UK would look to be part of any new NATO deployments if Russia invades Ukraine
It comes after a number of NATO nations increased deployments along the alliance's eastern flank amid increasing tensions with Russia.
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Russia Russian military exercises off coast of Ireland 'not welcome'
Foreign Affairs minister Simon Coveney condemned the planned drills in the context of tensions "with and in Ukraine".
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Russia How did tensions lead to potential Russia invasion of Ukraine?
Boris Johnson said warned Russia an invasion of Ukraine "could be a new Chechnya" as British staff at the embassy in Kyiv were withdrawn.