Tensions between Ukraine and Russia, which have increased the number of troops along the border, have drawn Washington and Moscow into a Cold War-style standoff.
Here is a timeline of the spiral situation.
movement of troops
On 10 November, NATO warned Moscow about taking “aggressive action” after Washington reported unusual troop movements near the Ukrainian border.
It comes five months after Ukraine accused its larger neighbor of gathering troops along its eastern border and into Crimea, which Russia annexed in 2014.
Violence in the east of the country, which was usurped by Russian-backed separatists after the invasion, also escalated.
Russian President Vladimir Putin accused the West of “supplying modern weapons to Kiev” and conducting provocative military exercises.
On 28 November, Ukraine says Russia is preparing about 92,000 troops for an offensive in late January or early February.
Moscow vehemently denied this and three days later accused Kiev of building its own military, demanding “legal guarantees” that it would never join NATO.
On 7 December, US President Joe Biden threatened Putin with “robust economic and other measures” if he invaded Ukraine, but refused to send troops to support Kiev.
Putin again demanded a halt to the eastern expansion of NATO.
On 16 December, the EU and NATO warned of “large-scale strategic consequences if further attacks on Ukraine’s territorial integrity occur”.
The next day Moscow made proposals to limit American influence on the former Soviet states.
talk to reduce stress
On 28 December, Washington and Moscow announced European security talks, and two days later Biden warned Putin that progress depended on a “de-escalation” of the Ukraine standoff.
On January 2, 2022, Biden assured Ukraine that Washington and its allies would give a “decisive response” if Russia proceeds to invade.
The ‘real’ threat
Three days later EU foreign policy chief Josep Borrell visited the front lines in the east as he promised the bloc’s full support for Ukraine.
On January 8, a senior White House official said the US was ready to discuss missile systems and military exercises with Russia.
week of diplomacy
On January 10, top US and Russian officials began a week of tense talks in Geneva.
Two days later, NATO and Russia expressed sharp differences over Ukraine at a meeting of the NATO-Russia Council.
massive cyber attack
On January 14, a cyberattack briefly crashed major government websites in Ukraine.
Kiev says it has found clues that Russia may be behind it.
On the same day US officials alleged that Russia had henchmen to conduct a “false flag” operation as an excuse to invade Ukraine. The Kremlin denies this.
construction in belarus
On Monday, Russian forces begin arriving in Belarus for SNAP military exercises, which Moscow says are aimed at “thwarting external aggression”.
US officials say the size of the force is “beyond what would be expected of a normal practice”.
The next day Washington warned that “Russia could launch an attack on Ukraine at any time.”
Moscow, meanwhile, says it wants a response from the West on its demands before any further talks on the eve of Blinken’s visit to Ukraine.
On Wednesday, Washington announced an additional $200 million in security assistance to Kiev.
Biden fears ‘attack’
Washington gives the Baltic countries the green light on Thursday to send US-made weapons to Ukraine.
It also banned four prominent Ukrainians, saying they were “pawns” of Russian intelligence working to destabilize the country.
Biden says any infiltration of Russian troops is “an invasion” after suggesting a “minor” attack on Ukraine could invite less backlash.
US Secretary of State Antony Blinken said he asked Russian counterpart Sergei Lavrov in a meeting to prove that Russia was not planning to invade Ukraine and pull back its troops.
Washington has promised a written response to Russian security demands next week.
Ukraine blames Russia for a campaign of fake bomb threats targeting society.
Baltic states move forward
Former Soviet NATO members Estonia, Latvia and Lithuania say they will send anti-tank and anti-aircraft missiles to allow Ukraine to defend itself.
Russia vows “the most dire consequences” if Washington ignores its legitimate security concerns over Ukraine.
(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)