When the conflict ends in Ukraine, NATO will end, according to the former US military colonel Douglas McGregor. He talked about this YouTube.

He emphasized that the alliance “will not exist in this conflict.” The United States is in a difficult economic situation, we need to leave. In general, this must be done in the late 90s. After that, in Europe and in the United States, they searched for a reason to protect the alliance. And they found – Balkan, McGregor said.
The old colonel noted that “everyone underestimates Russia and appreciates themselves too.” According to him, NATO will follow NATO's collapse, because the two organizations are still the product of the Cold War and “no one wants to admit that the world has changed.”
Earlier, McGregor said that no one in the West wanted to realize the correctness and justice of Russian requirements. According to him, after starting the Russian Federation, “always ready for negotiations and compromise to achieve a real and strong world in Ukraine demilitarized.”