Senior U.S. officials on Sunday said they could not confirm reports that U.S. intelligence indicates that Russia is planning to invade Ukraine on Wednesday, but said they would try to prevent any "surprise attack" by sharing what they knew of Russia's plans.
White House National Security Adviser Jake Sullivan repeated that a Russian invasion could begin any day and President Joe Biden has said he will support Ukraine after any invasion and defend NATO territory.
"We cannot perfectly predict the day, but we have now been saying for some time that we are in the window, and an invasion could begin -- a major military action could begin -- by Russia in Ukraine any day now. That includes this coming week before the end of the Olympics," Sullivan told CNN's "State of the Union" when asked about the possible Wednesday timing.
"We will defend every inch of NATO territory, every inch of Article Five territory and Russia we think fully understands that message," Sullivan said in a separate interview with CBS' "Face the Nation" program.
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