The Singing Revolution was a series of events from 1987 to 1991 that led to the restoration of independence of the three Soviet-occupied Baltic countries of Estonia, Latvia, and Lithuania at the end of the Cold War. The Soviet Union had annexed the Baltics around 1940, following the Molotov-Ribbentrop Pact (a non-aggression agreement with Nazi Germany) though this annexation was not widely recognized.During the subsequent occupation the Soviet Union suppressed local languages, religious institutions, and cultural expression, and carried out large-scale deportations and political repression.
In the late 1980s, massive demonstrations against the Soviet regime began after widespread liberalization of the regime failed to take into account national sensitivities. Civic organizations such as Sąjūdis in Lithuania, the Popular Front of Latvia, and the Estonian Popular Front coordinated petitions, rallies, and public forums to express dissent. Public song festivals became a key element of resistance, as tens of thousands of participants sang national and folk songs in mass gatherings, blending cultural revival with political protest.