But after Soviet leader Nikita Khrushchev's famous "Secret Speech" in early 1956 denouncing the crimes of Stalin, Rákosi found his position fatally compromised. Large numbers of people within the Party and society at large began to speak out against him and call for his resignation, as information about the Party's past abuses came to light. Rákosi was finally forced to resign in July 1956 and leave for the Soviet Union, replaced by his second-in-command Ernő Gerő. The Hungarian Revolution of 1956 occurred barely three months later as a result of the abuses of Rákosi's system, and his former rival Imre Nagy would become a dominant figure in the Revolution. Soviet troops ultimately crushed the uprising and installed a new Communist government under János Kádár.