text: Post-war closed city As early as July 1944, the State Committee of Defence in Moscow decided to build a large military machine-building factory in Dnipropetrovsk on the location of the pre-war aircraft plant. In December 1945, thousands of German prisoners of war began construction and built the first sections and shops in the new factory. This was the foundation of the Dnipropetrovsk Automobile Factory. In 1954 the administration of this automobile factory opened a secret design office, designated OKB-586, to construct military missiles and rocket engines.
  The high-security project was joined by hundreds of physicists, engineers and machine designers from Moscow and other large Soviet cities. In 1965, the secret Plant No. 586 was transferred to the USSR Ministry of General Machine-Building which renamed it "the Southern Machine-building Factory" (Yuzhnyi mashino-stroitel'nyi zavod) or in abbreviated Russian, simply Yuzhmash. Yuzhmash became a significant factor in the arms race of the Cold War (Nikita Khrushchev boasted in 1960 that it was producing rockets "like sausages" ).
  In 1959, Dnipropetrovsk was officially closed to foreign visitors. No foreign citizen, even of a socialist state, was allowed to visit the city or district. Its citizens were held by Communist authorities to a higher standard of ideological purity than the rest of the population, and their freedom of movement was severely restricted. It was not until 1987, during perestroika, that Dnipropetrovsk was opened to international visitors and civil restrictions were lifted.
  The population of Dnipropetrovsk increased from 259,000 people in 1945 to 845,200 in 1965.