Examlex
If a planet orbits the sun at a distance of 4 AU, then its orbital period is 8 years.
Containment
A foreign policy strategy aimed at stopping the expansion of an enemy or ideology, particularly communism during the Cold War.
Indian Removal Program
A government policy in the 1830s that forced Native American tribes to relocate from their ancestral lands in the southeastern United States to designated territory west of the Mississippi River.
American Expansionism
A policy or ideology aiming at expanding the territorial or economic influence of the United States across other nations and territories.
Civilian Control
The principle that military leaders remain under the oversight and authority of civilian government leaders.
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