What Russian word meaning 'restructuring' was a political movement in the 1980s?
Перестройка Perestroyka Perestroka Perestrojka Perestroika Katastroika Peristroika
perestroyka perestroika перестройка peristroika perestrojka katastroika perestroka
perestroika
WikipediaEntity
Perestroika