The Soviet Union also began experiencing upheaval as the political consequences of "glasnost" reverberated throughout the country. Despite efforts at containment, the upheaval in Eastern Europe inevitably spread to nationalities within the USSR. In elections to the regional assemblies of the Soviet Union's constituent republics, nationalists as well as radical reformers swept the board. As Gorbachev had weakened the system of internal political repression, the ability of the USSR's central Moscow government to impose its will on the USSR's constituent republics had been largely undermined. Massive peaceful protests in the Baltic republics such as the Baltic Way and the Singing Revolution drew international attention and bolstered independence movements in various other regions.