The following were the nature of shift in power in the world after the second world war:
i) The end of the Second World War symbolized the emergence of the two superpowers at the center of the world, USA and USSR.
ii) The worst affected countries due to the Second World War were the USSR, Poland, Yugoslavia which lost about 20% of their population.
iii) In contrast, the USA suffered less as the war was not fought on its territories.
iv) All European empire declined due to the huge loss of their resources.
v) There was also opposition from newly independent countries to not to join any of the bloc either the Soviet Union or the USA, capitalist bloc. Hence they followed the Non-Alignment Movement and maintained peaceful relations with the two superpowers.
vi) As the time passed, the two superpowers entered into the Cold War which was basically an ideological war instead of direct involvement in the war.