"Bucharest was a constant irritant inside Comecon and the Warsaw Pact. Romania’s ambitious industrial plans remained in place. Ceaușescu also reinforced the collective-farm system. Like Khrushchëv earlier, he bulldozed villages and brought peasants together in new rural townships. The rationale for this was the zeal to bring concrete-slab, multi-storey buildings, tractors and electric light to the countryside. National pride was asserted and the Hungarian Autonomous Region was abolished. Opposition was vigorously suppressed by the security police. Ceaușescu was determined to secure his regime from internal subversion as well as external interference. What saved Romania from being invaded by its allies in the Warsaw Pact was its retention of the one-party, one-ideology communist state. Ceaușescu's friendliness to the powers of the West was irritating but not a casus belli. Adoption of party pluralism and capitalist economics would have been an entirely different matter."