Which statesman popularized the term the iron curtain in a 1946 speech?

Winston Churchill used the "Iron Curtain" as a metaphor for the border Russia had created between western and eastern Europe.

um is there supposed to be choices?

to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.