Original sentence: Allende's predecessor President Frei improved relations with Russia.Forced to seek alternative sources of trade and finance, Chile gained commitments from Russia to invest some $400 million in Chile in the next six years.In February 1970, President Frei's government signed Chile's first cultural and scientific agreement with Russia.Trade between the two countries did not significantly increase and the credits were mainly linked to the purchase of Russian equipment.When Allende visited Russia in late 1972 in search of more aid and additional lines of credit, he was turned down
Edited sentence: Allende's predecessor President Frei improved relations with the USSR.Forced to seek alternative sources of trade and finance, Chile gained commitments from the USSR to invest some $400 million in Chile in the next six years.In February 1970, President Frei's government signed Chile's first cultural and scientific agreement with Soviet Union.Trade between the two countries did not significantly increase and the credits were mainly linked to the purchase of Soviet equipment.When Allende visited Soviet Union in late 1972 in search of more aid and additional lines of credit, he was turned down