Final answer:
After the Cold War came to an end, the Soviet Union collapsed, leading to major geopolitical changes.
Step-by-step explanation:
After the Cold War came to an end, the correct option is OD. The Soviet Union collapsed. The end of the Cold War in 1991 resulted in the dissolution of the Soviet Union, marking a significant shift in global politics and the end of the bipolar world order that characterized the Cold War era. The collapse of the Soviet Union led to the emergence of new independent states and major geopolitical changes in Eastern Europe and Eurasia.
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