Soviet Union collapsed
When the 
 two years after Sakharov's death in 1989, Bonner continued her human rights and political activities. She initially supported President Boris Yeltsin's government and served on his state human rights commission, but became critical of his government at the beginning of the war in Chechnya. She was also critical of Yeltin's successor, Vladimir Putin, and was the first person to sign a petition against him in March 2010. 
Soviet human rights activist Yelena Bonner dies aged 88