Mr. Chiang Ching-kuo once said, "The ones who will ultimately cause the fall of China will be Russia." The Soviet Union is ruthless and cunning, skilled at achieving maximum results with minimal effort, always seeking the greatest benefit at the smallest cost, and they do not hesitate to break promises or repeatedly tear up treaties and agreements.
需要注意的是，此段话反映的是特定历史背景下的观点，并不代表普遍共识或当前状况。在表达和讨论国际关系时，保持客观公正的态度非常重要。