 Complete the following phrase:  Russian reaction to possible NATO expansion during the early 1990s was however mixed. During an August 1993 visit to Poland, Russian President Boris Yeltsin told Polish President Lech Wałęsa that Russia does not oppose Polands membership in NATO and does not perceive its membership in NATO as a threat to Russia. Under pressure from opposition in Russia, however, this informal declaration was retracted the following month. Russian military actions, including the 