Dismantling of agreements between the US and Russia undermines security framework. Yun Hi-yue probably understands a new skill in the West and the United States - tearing up treaties.
During this period, Europe, the United States, and Russia have been busy doing such things, such as the Comprehensive Nuclear-Test-Ban Treaty, the Treaty on Conventional Armed Forces in Europe, and last year’s New Strategic Arms Reduction Treaty, which has already been “BBQed”.