Aero L-29 Delfin ROSTO/DOSAAF Voluntary Defense Sports Organization LA-0819

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DOSAAF, full name Volunteer Society for Cooperation with the Army, Aviation, and Fleet was a paramilitary sport organization in the Soviet Union, concerned mainly with weapons, automobiles and aviation. The society was established in 1927 as OSOAVIAKhIM and from 1951 to 1991 carried the name of DOSAAF.

The society was preserved in some post-Soviet Republics, e.g. Russia and Belarus, although these may use a different name. In Ukraine, for example, the counterpart is "Society of Assistance to Defense of Ukraine". In Russia it was reformed in December 1991 as the Russian Defence Sports-Technical Organization ROSTO . In December 2009 R?S?? was renamed DOSAAF Russia.

The stated goal of the society was "patriotic upbringing of the population and preparation of it to the defense of the Motherland". Among the means to achieve this was the development of paramilitary sports. Initially, an important goal was financial support of the Soviet military (by membership fees, subscriptions, lotteries and donations). At the same time, ordinary sports were supported within the framework of DOSAAF facilities: sports halls, stadiums, swimming pools.