“Superpower rivalry in Europe and Asia between 1943 and 1949 led to the breakdown of the grand alliance.” To what extent do you agree with this statement?

The question requires that candidates consider the merits or otherwise of the statement that superpower rivalry in Europe and Asia during the suggested timeframe led to the breakdown of the grand alliance. Candidates may consider events that extend beyond 1949, but they must be clearly linked to the rivalries from within the timeframe. A comparative approach may or may not be used. While other relevant factors, for example different ideologies and/or styles of leadership, may be referred to, the bulk of the response will remain on the issue raised in the question. Candidates may agree, partly agree or disagree with the statement.