Complex sentence: The Soviet leadership selected Mátyás Rákosi to front the Stalinization of the country; his government's policies of militarization, industrialization, collectivization, and war compensation led to a severe decline in living standards.
Split into simpler sentences: The Soviet leadership selected Mátyás Rákosi to front the Stalinization of the country. His government's policies of militarization, industrialization, collectivization, and war compensation led to a severe decline in living standards.