On Tuesday, the last US ambassador to the Soviet Union, Jack Matlock, said that the United States was engaged in an undeclared war with Russia and warned of the danger inherent in that. "It seems to me that it is extremely dangerous to attempt what is, in effect, an undeclared war against a nuclear armed power," Matlock warned.
After the fall of the Soviet Union, the United States never acknowledged Russia’s right to exist as a country or that it had legitimate national interests. NATO was focused on the Soviet Union for decades, when it collapsed, NATO turned its sights on Russia almost immediately, ignoring its calls for peace and cooperation and working towards its destruction.