The Pentagon said on Monday (Jan 31) it is in active discussions with Eastern European allies about possible US troop deployments to Nato's eastern flank, as Washington moves to reassure jittery Nato allies in the face of a Russian military buildup near Ukraine.
Any decisions on new troop movements would be separate from the some 8,500 forces in the United States who were put on alert last week to potentially bolster a Nato rapid response force, the Pentagon said, adding context to President Joe Biden's comments on Friday about potential near-term deployments to Eastern Europe.
Pentagon spokesman John Kirby said the troops that Mr Biden was referring on Friday to could potentially be redeployed from within Europe.
"We're going through the rigorous work of providing options for the commander in chief should he decide to do that... in close consultation with the actual allies themselves," Mr Kirby said.
Separately, the US military last week put about 8,500 troops inside the United States on alert to be ready to deploy to Europe, largely to fill the ranks of a Nato rapid response force should the alliance call them up for duty.
Russia denies planning an invasion. But, having engineered the ongoing crisis by surrounding Ukraine with forces from the north, east and south, Moscow is now citing the Western response as evidence to support its narrative that Russia is the target, not the instigator, of aggression.
Russia, which seized Crimea from Ukraine in 2014 and backs pro-Russian rebels fighting government forces in eastern Ukraine, is demanding sweeping security guarantees including a promise Nato never admit Ukraine.
Russian Foreign Minister Sergey Lavrov is expected to speak by phone with US Secretary of State Antony Blinken on Tuesday, a State Department spokesperson said.
Mr Biden stressed diplomatic efforts aimed at averting a conflict.
"We continue to engage in non-stop diplomacy and to de-escalate tensions," Mr Biden told reporters in the Oval Office.