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