U.S. President Joe Biden said Thursday that Moscow would “pay a heavy price” for any Russian troop movements across Ukraine’s border.

The U.S. on Thursday escalated pressure on Russia, approving new arms transfers and accusing it of a plot against Ukraine.

Biden's suggestion that a "minor incursion" by Russia into Ukraine could spark a debate with US allies over consequences touched a nerve in Kyiv.

Ukrainian President Volodymyr Zelensky publicly pushed back Thursday on US President Joe Biden's comments that a "minor incursion" by Russia into Ukraine would prompt a lesser response than a full-scale invasion, in an implicit rebuke of Biden's comments.

Press secretary Jen Psaki said the U.S. response to an invasion would be “swift, severe, and united,” after the president said it would depend on the severity of Russia’s actions.

The US president says he thinks Russia's leader will "move in" but does not want a "full-blown war".

US secretary of state arrives in Kyiv to meet President Zelenskyy, as fears grow of imminent Russian invasion.

Russia denies any plan to attack Ukraine but tensions are high as troops mass near the border.

Seven bipartisan senators are in Ukraine to meet with President Zelenskyy and officials to reaffirm the U.S.' commitment to Ukraine as Russian troops amass at the border.

After a week of diplomatic talks ended with no progress, there are fears a Russian attack on Ukraine may become more likely.

Plus: Open source sabotage, Ukrainian website hacks, and more of the week's top security news.

Warnings that Russia may be looking for a pretext to invade Ukraine come as talks with the US and NATO have stalled.

The presidents of the US and Russia will speak again in a bid to de-escalate tensions over Ukraine.

The US military aircraft is designed to collect critical intelligence about the situation on the ground.

US and Russian presidents will discuss 'upcoming diplomatic engagements' amid ongoing tensions over Ukraine.

Caution from London comes as Putin calls for an 'immediate response' from Kyiv's Western allies over security demands.

Russian president also discusses US relations and the economy during marathon question-and-answer session.

The Russian leader welcomed talks with the U.S. that are set to start in Geneva next month, but warned the discussion focused on Moscow’s demand needs to produce quick results.

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

Russia and China's Trade Relationship Has Become Increasingly Lopsided https://t.co/9uO0BU57md

RT @IlvesToomas: The story of West European blinded by Russia and rubbishing Eastern Europe is that gift that keeps making us throw up. ht…

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

RT @IlvesToomas: The story of West European blinded by Russia and rubbishing Eastern Europe is that gift that keeps making us throw up. ht…

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

RT @MayadeenEnglish: #AlexanderDugin believes the #Russian situation can only be resolved through a revolution from above, or the country w…

RT @BusinessInsider: Russia and China's trade relationship has become increasingly lopsided https://t.co/n2u70qNxPt

Russia-Ukraine war – live: Wagner chief Prigozhin claims his troops won’t fight in Putin’s war ‘for now’ https://t.co/KTo0demmr5

RT @BusinessInsider: Russia and China's trade relationship has become increasingly lopsided https://t.co/n2u70qNxPt

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

Wagner chief Prigozhin claims his troops won’t fight in Putin’s war ‘for now’ – live https://t.co/FWpwRBzCvr

Russia and China's trade relationship has become increasingly lopsided https://t.co/n2u70qNxPt

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

RT @Gloriabesos: Russia Snatches 280 Kids From Ukrainian City To Be 'Zombified' By Putin’s Thugs #NewsBreak This is what Trump’s supporters…

Russian missiles hit Ukrainian grain storage, destroying over 60,000 tonnes of grain. #ukraine #ukrainian #ukrainewar #grain #graindeal #russia #russian #russianwar #invasion #news #worldnews #blacksea #graininitiative #worldhunger #putin #zelensky https://t.co/qDPtU3PfRI

Putin Held Meeting With Prigozhin, Kremlin Says #AndyVermautFromBelgiumLovesNewYorkTimes https://t.co/8tCtE7SuMf https://t.co/Tlj03FoaBY

The biggest challenge for NATO in the longer term may not be Vladimir Putin and Russia, but a rising power much further from Europe’s shores — China https://t.co/AEzdkablBz via @bpolitics

Ukraine live briefing: Putin met with Wagner chief after rebellion; Biden in U.K. ahead of NATO summit https://t.co/ndQD72XzpN

RT @kaitlancollins: Wagner chief Yevgeny Prigozhin met with President Vladimir Putin after his short-lived mutiny at the end of June, per t…

#Russia #Ukraine.The #Kremlin made it official after a few days,waiting for Western #intelligence to give the news they didn't have)that #Putin met the #Wagner group in Moscow on June 29.35 people attended the meeting:all the commanders of the detachments and the head #Prigozhin https://t.co/VkAsLQcpGD

Wagner boss Yevgeny Prigozhin met Russia's Vladimir Putin after mutiny. He was invited to give a update on the illegal Ukraine war, but hasn’t been seen since ??? https://t.co/db5j0Yyben

RT @SkyNews: General Valery Gerasimov, chief of the general staff of Russia's armed forces, was shown in public on Monday by the defence mi…

RT @SkyNews: BREAKING: Russian President Putin met with Wagner Chief Yevgeny Prigozhin for a three-hour meeting on 29 June, days after the…

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