A paper by Pál Germuska, director of the Institute of 1956 in Budapest, "Military-Economic Planning in Socialist Hungary: the General Organisational Department of the National Planning Office, 1948–1971," originally received on 15 July 2007, is no. 49 in the PERSA series. Based on formerly top secret sources, the paper analyses the transformation of military-economic and defence industry planning in Hungary in the Socialist period. At the turn of the 1940s and 1950s the Soviet military planning system was mechanically adopted in Hungary, a much smaller country. In the years of the Korean War a system of general mobilization was developed in all ministries, and the whole national economy was militarized. Although some limitations were introduced into this structure in the following five years, the planning methods and apparatus were reorganized and modernized only at the beginning of the 1960s. It was at this time that the lessons of modern atomic war were drawn in the planning office, resulting in radical change. The paper is available at www.warwick.ac.uk/go/persa.