The White House says the U.S. will not limit or change its missile defense plans in Europe amid new threats from Russia.
Spokesman Tommy Vietor says the U.S. has been open and transparent with Moscow on its missile defense plans in Western Europe. The U.S. has repeatedly said those plans reflect a growing threat from Iran and wouldn't be directed against Russia's nuclear forces.
His comments follow Russian President Dmitry Medvedev's assertion Wednesday that Russia would target the U.S. missile shield if Washington fails to assuage Moscow's concerns. Medvedev also warned that Moscow may opt out of the New START arms control deal with the U.S.
Vietor says implementation of the New START treaty is going well and the U.S. sees no basis for threats to withdraw from it.