How did the United States redefine national security after 1945? What

How did the United States redefine national security after 1945?

What will be an ideal response?

ANSWER
The ideal answer should include:
1. At the end of World War II, U.S. policymakers were determined to revive the global capitalist economy.
2. American prosperity and freedom, they believed, depended on a world system of free trade.
3. From this perspective, American national security was seen to be at stake almost everywhere around the globe.
4. The primary threat to that security came from the Soviet Union.
5. The danger lay in Soviet encouragement of revolutions that rejected market economies and individualist ethics.