The strengthening of the defence of the Soviet Union is the cause of all the working people.

The proletarians of Leningrad were in the foremost ranks in the battles of the civil war.

The proletarians of Leningrad must now, too, set an example of organisation, discipline and solidarity in preparing for defence of the Soviet Union against the enemies of the working class.

I have no doubt that the Leningrad Osoaviakhim, which is a mass organisation of the Leningrad proletarians, will fulfil its duty to the land of the proletarian
dictatorship.

J. Stalin

Krasnaya Gazeta (Leningrad),

No. 163, July 15, 1928