invasion vs thrust

invasion

noun
  • A military action consisting of armed forces of one geopolitical entity entering territory controlled by another such entity, generally with the objective of conquering territory or altering the established government. 

  • The breaching of the skin barrier. 

  • The spread of cancer cells, bacteries and such to the organism. 

  • The entry without consent of an individual or group into an area where they are not wanted. 

thrust

noun
  • A push, stab, or lunge forward (the act thereof.) 

  • An attack made by moving the sword parallel to its length and landing with the point. 

  • The primary effort; the goal. 

  • The force generated by propulsion, as in a jet engine. 

verb
  • To stab; to pierce; usually with through. 

  • To enter by pushing; to squeeze in. 

  • To push out or extend rapidly or powerfully. 

  • To make advance with force. 

  • To push or drive with force; to shove. 

  • To force something upon someone. 

How often have the words invasion and thrust occurred in a corpus of books? (source: Google Ngram Viewer )