Under Stalin's leadership, the government launched a command economy, industrialisation of the largely rural country, and collectivisation of its agriculture. During this period of rapid economic and social change, millions of people were sent to penal labor camps, including many political convicts for their suspected or real opposition to Stalin's rule; millions were deported and exiled to remote areas of the Soviet Union. The transitional disorganisation of the country's agriculture, combined with the harsh state policies and a drought, led to the Soviet famine of 1932–1933; and the Soviet Union made the costly transformation from a largely agrarian economy to a major industrial powerhouse within a short span of time.