Josip Broz Tito's Yugoslavia, the lone independent communist state since the 1948 Moscow-Belgrade rift, supported Soviet use of military force against Hungary in the 1956 revolution there. Some leaders other than the Soviet ones feared possible dissolution of the Warsaw Pact and spillover of anti-communist ideas. Tito felt threatened by the movement associated with Imre Nagy who argued that certain principles propounded at the 1955 Bandung Conference must apply to relations of countries within the socialist camp. Tito, the Nagy affair and the revolution have been studied using newly available documents from major archives of Moscow.