Invasion is a word that comes from Latin. Originally, it meant that something goes in (as in military occupation) of a foreign territory. So far, the following uses are known:

  • Military: Getting troops to take control of enemy territory. Often a state invades another to start a war, but invasions can happen anytime during war. An invasion differs from a raid, in which the attacker does not intend to remain.
  • Others: Sometimes, biologists speak about an invasive species. There might be locust swarms invading, or that some algae spread far more rapidly in new territory.


Wikiwand in your browser!

Seamless Wikipedia browsing. On steroids.

Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.

Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.