历史,已经成为过去;而历史留下的,却是深刻和沉痛的教训。戈尔巴乔夫在成为苏联领导人之后,采取了新的政策。在国内,他发动了改革和发表了公开信;而对国外,他的政策则更是跟以往不同。对东欧国家,他放松了政治;对西方国家,则是提出了积极的裁军建议。对戈尔巴乔夫外交政策的急 History has become a thing of the past, but history has left behind profound and painful lessons. Gorbachev took a new policy after becoming the leader of the Soviet Union. At home, he launched an open letter of reform and published an open letter; while abroad, his policy is even more different from the past. For Eastern European countries, he relaxed politics; for Western countries, he put forward positive disarmament proposals. The urgency of Gorbachev’s foreign policy