Answer:
Civilizations expand through trade, conflict, and exploration. Usually, all three elements must be present for a civilization to grow and remain stable for a long period of time.
Explanation:
The difference between ensuring domestic tranquility and providing common defense is related to the scope of events. In a situation of ensuring domestic tranquility, the US government has a duty to maintain peace within the country's borders.
Providing common defense refers to plans and actions to keep the nation safe from foreign threats, through an effective national army ready to defend the country under any circumstances.
<h3 /><h3>What is the need to promote national security?</h3>
It is essential for the maintenance of a safe country, where each citizen has their human and civil rights protected, by measures and actions of the country's leaders in favor of peace and the quality of life of its citizens.
Therefore, ensuring domestic tranquility and providing common defense are duties of the government of a country, which must be ready to protect the country from threats that jeopardize its security and sovereignty.
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Because it was controlled by Russia who were communist, and the west was controlled by the US which was helping them develop their country again
