The Cold War, a very significant, prolonged period of political and military tension between the United States and the Soviet Union following World War II (already discussed in an earlier unit), is generally attributed by historians substantially to:
- **A)** The Cold War having no meaningful, describable relationship to significant ideological competition, or the broader significant breakdown of the wartime Allied cooperation already discussed in an earlier unit
- **B)** Significant ideological competition between American-led liberal democratic capitalism and Soviet-led communism (both already discussed at multiple points throughout an earlier unit), combined with the breakdown of the temporary wartime cooperative alliance between these two powers once their shared immediate objective of defeating the Axis powers had been achieved (already discussed in an earlier unit) - the Cold War's own significant ideological and geopolitical competition illustrates a further significant example of how the significant political and economic ideologies already discussed at multiple points throughout an earlier unit could directly generate very considerable, prolonged international tension well beyond the conclusion of World War II
- **C)** A conflict involving direct, large-scale military combat between the United States and the Soviet Union throughout its own entire duration, a characterization that does not accurately reflect the Cold War's own actual, well-documented general avoidance of direct large-scale military conflict between these two specific powers
- **D)** A conflict that developed with no meaningful connection of any kind to the earlier World War II wartime alliance already discussed in an earlier unit, a characterization that understates the genuinely significant, well-documented connection between the breakdown of this wartime alliance and the subsequent Cold War
The Cold War is generally attributed by historians substantially to significant ideological competition between American-led liberal democratic capitalism and Soviet-led communism, combined with the breakdown of the temporary wartime cooperative alliance between these two powers once their shared immediate objective of defeating the Axis powers had been achieved.