Why do the spanish colonies believe that the acquisition africa is a necessity

The reason that the Spanish colonies believe that the acquisition of Africans is a necessity because they don't want to do the work, which included obtaining gold, silver and other hard work, and the Emperor freed all the Christians, so no one can force them to do work, while African slaves were forced to do all the drudgery.

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.