A newly discovered document from March 1991 shows US, UK, French, and German officials discussing a pledge made to Moscow that NATO would not expand to Poland and beyond. Its publication by the German magazine Der Spiegel on Friday comes as expansion of the US-led bloc has led to a military standoff in Eastern Europe.

The minutes of a March 6, 1991 meeting in Bonn between political directors of the foreign ministries of the US, UK, France, and Germany contain multiple references to “2+4” talks on German unification in which the Western officials made it “clear” to the Soviet Union that NATO would not push into territory east of Germany. (See links below for the rest of the story)