Complex sentence: In 1979, the united resolution of the Moscow urban and provincial Soviets of People's Deputies organized the "Losiny Ostrov" as a natural park, and in 1983 the decision of the Council of Ministers of the RSFSR formed the national park.
Split into simpler sentences: In 1979, the united resolution of the Moscow urban and provincial Soviets of People's Deputies organized the "Losiny Ostrov" as a natural park. In 1983 the decision of the Council of Ministers of the RSFSR formed the national park.