A public organisation whose aim was to encourage Jews to take up agricultural work. OZET was formed in 1925 in Moscow, and had offices all over the Soviet Union. Its task was to encourage public sympathy, both within the USSR and abroad, for the plans to establish Jewish agricultural colonies in the Crimea, in Ukraine and in Birobidzhan, and to raise funds for the realisation of these plans by organising lotteries. OZET was liquidated in 1938 and almost all its leadership perished in the Stalinist repressions.