RT

Washington now reportedly believes such strikes are less likely to trigger a direct clash between Moscow and NATO

The US has quietly given Ukraine the go-ahead to launch long-range strikes against targets inside Russian territory, The Times reported on Friday, citing sources. The Pentagon has apparently changed its stance on the matter as it has become less concerned that such attacks could escalate the conflict.

https://www.rt.com/russia/567993-us-ukraine-attacks-deep-russia/