Query: When were the deported Estonians allowed to return?
Context: Half the deported perished, and the other half were not allowed to return until the early 1960s (years after Stalin's death).[citation needed] The activities of Soviet forces in 1940–41 and after reoccupation sparked a guerrilla war against Soviet authorities in Estonia by the Forest Brothers, who consisted mostly of Estonian veterans of the German and Finnish armies and some civilians.