Why did the Soviet Union assist east Germany in building the Berlin Wall in 1961?

Which supreme court justice decided against school segregation in brown v board of education/10107661/2618692c? utm_source=registration

How did the goals of u. s. foreign policy in europe compare to the goals of soviet foreign policy after world war ii? a the soviet union wanted control of eastern europe. the united states wanted independent nations in eastern europe. ob the united states wanted control of eastern europe. the soviet union wanted independent nations in eastern europe, o c both the united states and joseph stalin agreed that a strong, germany and independence in eastern europe were best. od both the united states and soviet union agreed that a weak germany and satellite states in eastern europe were best.

Why would the saudi’s oil industry need a large investment in human capital