A progress of ideas. An abortive and the first real war between socialist countries. Soviet aggression against Hungary in 1956. Rethinking Marxism. The North Atlantic treaty organization and the Hungarian revolution of 1956. Creation of a "functioning market economy". Hungary's membership of NATO. Preparations for Hungary's accession to the European Union. From "goulash communism" to breakdown. The Hungarian roundtable talks of 1989 in a Central European comparison. The United Nations organization and the Hungarian revolution. Repression and restoration, 1956-1963. Hungary's negotiated revolution.