德苏之间的“互不侵犯”条约，即中止于1939年8月的所谓“希特勒－斯大林”协定，曾经作过修订，追加的是一个秘密附录 ― ― 关于如何把边境国家：芬兰、爱沙尼亚、拉脱维亚、波兰和罗马尼亚划分到这两大势力国的利益范围。
The German-Soviet non-aggression treaty, the so-called Hitler-Stalin pact, concluded in August 1939, had been supplemented by a secret appendix dividing the border states Finland, Estonia, Latvia, Lithuania, Poland and Romania into spheres of interest for the two parties.