Western leaders hope to set up a new Nato “quick-strike force” in an attempt to strengthen their position against Russia.
The 4,000-strong force would be ready to deploy within 48 hours.
Secretary general Anders Fogh Rasmussen said it “will require reception facilities on Nato territory.
“That will mean a more visible Nato presence in the East for as long as required.”
Nato’s conference in Newport, South Wales, this week was originally set to focus on Afghanistan.
It will now be dominated by Ukraine.
Hawks want to see permanent bases and a military build up in eastern Europe.
Other rulers are anxious about ratcheting up tensions because of their economic links with Russia.
But the Ukrainian government has not been able to suppress the separatists in eastern Ukraine. And imperialist rivalry keeps driving further confrontation.