Brussels: Nato allies are scheduled to meet today amid tensions with Pakistan and Russia.
Pakistan suspended Nato supplies after its 24 soldiers were killed in a Nato attack in Pak-Afghan border area last month.
According to reports, the allies will meet to calm Russian fears over their missile shield project.
Clinton is joining her 27 alliance counterparts in Brussels for two days of talks that will also touch on the Afghan war amid tensions with Pakistan after a Nato air strike on the Afghan border last month killed 24 Pakistani troops.
They will then meet with Russian Foreign Minister Sergei Lavrov on Thursday to tell him the missile shield will go ahead but that Nato still wants to negotiate a cooperation deal with Moscow, alliance diplomats said.
