It restricted immigration to the us.
Answer:
Most current communist groups descended from the Maoist ideological tradition still adopt the description of both China and the Soviet Union as being state capitalist from a certain point in their history onwards—most commonly, the Soviet Union from 1956 to its collapse in 1991 and China from 1976 to the present.
Thank you for using Brainly. I’m happy to help you out on this question. Darius conquered the Indus Valley around 518 BC. Hope that helps you out and have a good day.