The Berlin Wall solved the refugee crisis for East Germany, which now controlled who could leave and enterEast Berlin.
West Berlin remained under Allied control, making it harder for the Soviets to control the whole of East Germany.
The number of military alerts in Berlin decreased as the situation there became less tense.
The Berlin Wall was a humiliation for the USSR and a propaganda victory for the West, as it appeared a wall was needed to prevent people fleeing.
The Berlin Wall had both positive and negative effects on the relationship between the USA and the USSR: it solved the crisis over Berlin, reduced tension, and there were fewer military alerts in Berlin as the situation had stabilised.
The building of the Berlin Wall began on the 12th-13th August, 1961.
The two main reasons for the building of the Berlin Wall were: to prevent East German people defecting to West Berlin and to keep capitalism and spies from the West out, according to the Soviets and the East German government.