The artist's name on the poster is not indicated. By assigning Artist Unknown to a poster it also could mean the artist used a chop mark whereby no signature is seen thus rendering the artist's identity anonymous.
Voenizdat (Military Publishers) or voennoe izdatelstvo was the Military Publishing House of the Ministry of Defense of the USSR. Established in Moscow by the Revolutionary Military Soviet in 1919, Voenizdat published literature for the defense industry such as technical manuals and dictionaries. It also published posters, pamphlets and fiction and non-fiction literature frequently containing military themes. Voenizdat's predecessor was Litizdat, the publishing arm of the Department of the Revolutionary Military Council.