Ukraine war live: Putin could attack Nato within weeks, US intelligence warns The IndependentUS intel assesses Putin could launch attack aimed at testing NATO unity CNNOpinion | Russia keeps testing NATO. The lack of response will embolden Putin. The Washington PostU.S. intelligence agencies warn Putin could test NATO by authorizing provocative actions CBS NewsExclusive | U.S. Intel Finds Putin Could Test NATO’s Resolve With Limited Incursion WSJ