+**Annexation** is the formal act by which a [State](/wiki/state) unilaterally asserts its [Sovereignty](/wiki/sovereignty) over territory previously outside its recognized domain. This process often involves conquest or a political claim, permanently incorporating the new land into the annexing nation's territory.
+## See also
+- [Conquest](/wiki/conquest)
+- [Cession](/wiki/cession)
+- [Territory](/wiki/territory)
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