Annexation refers to the act of incorporating a territory or region into an existing political entity, such as a country. It often involves bringing foreign lands under the control and jurisdiction of another nation.
Related terms
Imperialism: Imperialism is the policy or practice of extending a country's power and influence through colonization, economic domination, or military force.
Manifest Destiny: Manifest Destiny was the belief held by many Americans in the 19th century that it was their destiny, guided by God, to expand American territory from coast to coast.
Louisiana Purchase: The Louisiana Purchase was an example of annexation in U.S. history when President Thomas Jefferson acquired a vast amount of land from France in 1803, doubling the size of the United States.