'nato would not move to the east'

As the USSR collapsed, Mikhail Gorbachev made a concession that was astonishing in the light of recent history and strategic realities: he agreed to allow a united Germany to join a hostile military alliance. This “stunning concession” was hailed by Western media, NATO, and President Bush I, who called it a demonstration of “statesmanship ... in the best interests of all countries of Europe, including the Soviet Union.”
Gorbachev agreed to the stunning concession on the basis of “assurances that NATO would not extend its jurisdiction to the east, `not one inch’ in [Secretary of State] Jim Baker's exact words.” Strobe Talbott, the highest official in charge of Eastern Europe... reports that “Secretary of State Baker did say to then Soviet foreign minister Eduard Shevardnadze, in the context of the Soviet Union's reluctant willingness to let a unified Germany remain part of NATO, that NATO would not move to the east.”
Clinton quickly reneged on that commitment, also dismissing Gorbachev’s effort to end the Cold War with cooperation among partners. NATO also rejected a Russian proposal for a nuclear-weapons-free-zone from the Arctic to the Black Sea.