What does annexation mean?
Annexation is the formal act of incorporating territory into the domain of an existing state, ruler, or municipality, most often without the consent of the party previously exercising control over it. In international law, it carries grave connotations: the acquisition of territory by force is widely regarded as illegitimate, and annexations such as those of Crimea in 2014 have drawn near-universal condemnation. The term also appears in more mundane civic contexts, where local governments annex neighbouring unincorporated land for development or taxation purposes — a routine administrative procedure rather than an act of conquest. Derived from the Latin 'annectere', meaning to bind or tie to, the word entered English in the early seventeenth century. It remains central to discussions of sovereignty, borders, and self-determination, making it essential vocabulary for understanding geopolitics, history, and law.
nounThe formal act by which a state or ruler incorporates territory into its own domain, typically by force or unilateral decree and without the consent of the previous sovereign. More broadly, the action of attaching or adding something to a larger thing.
- The incorporation of territory into a state or political entity, especially by force or without the consent of the governing power.
- The act of adding or attaching something smaller to something larger, such as a building extension or a document appended to another.
"The annexation of Crimea in 2014 was widely condemned as a violation of international law."
"Japan's annexation of Korea in 1910 remained in effect until the end of the Second World War."
"The city council approved the annexation of the surrounding farmland to accommodate new housing developments."
Standard plural form; used when referring to multiple instances of territorial incorporation or multiple municipal expansions.
"The empire's annexations across the continent redrew the map within a single decade."
No country in the world has ever formally recognized the annexation of Crimea by Russia in 2014 — making it one of the most diplomatically isolated land grabs in modern history.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of annexation
Annexation derives from the Latin verb 'annectere' ('to bind to'), formed from 'ad-' ('to, toward') plus 'nectere' ('to bind or tie'), the same root that gives us 'connect' and 'nexus'. The noun entered English in the early seventeenth century, initially used in legal and diplomatic contexts to describe the attachment of property or territory. Its political meaning — the forcible incorporation of one state's territory by another — became prominent during the era of European imperial expansion and remains central to international legal discourse today.
Related word forms
How annexation is actually used
In political and legal contexts, 'annexation' carries strongly negative connotations when it occurs without consent, as international law broadly prohibits the acquisition of territory by force. In municipal contexts, the word has a neutral, administrative meaning — cities routinely annex adjacent unincorporated land.
Easily confused with annexation
An 'annex' is an addition or extension to a building (or, as a verb, to add territory), while 'annexation' is the noun denoting the act or process of incorporating territory into a state.
'Attachment' refers generally to fastening or joining things together, whereas 'annexation' specifically denotes the incorporation of territory into a political entity.