Bankir and his men have been trying to fight off Russian attacks along the Ukrainian front lines for more than two years. But it’s only now that they are finally able to strike where it hurts: Inside Russia’s own territory.
The newly granted permission by the United States and other allies to use Western weapons to strike inside Russia has had a huge impact, Bankir said. “We have destroyed targets inside Russia, which allowed for several successful counteroffensives. The Russian military can no longer feel impunity and security,” the senior officer in Ukraine’s Security Service (SBU) told CNN. For security reasons, he asked to be identified by his call sign only.
What are you basing this statement on? All analysis I have seen so far come to the conclusion, that the war is devastating on an humanitarian and demographic scale, but sustainable for years to come from an pure manpower & training-capacity pov. (Given historical data)
The same analysts suggest that the main reason for the current stalemate is the lack of weapon systems/munitions, that would enable a sustained breakthrough like artillery, tanks and air defense systems. Stuff that western allies hesitate or are incapable to provide in large quantities.