alien invasion
Alien invasion refers to an event where beings from extraterrestrial civilizations aggressively infiltrate and conquer Earth, often with hostile intentions.
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Related Concepts (1)
Similar Concepts
- alien abductions
- alien civilizations
- alien communication
- alien contact
- alien encounters
- alien encounters in popular culture
- alien experimentation
- alien hybrids
- alien intelligence
- alien invasions in film and literature
- alien spacecraft
- alien weaponry
- ancient aliens
- extraterrestrial life
- invasion biology