garrison vs mobilise

garrison

verb
  • To occupy with troops. 

  • To convert into a military fort. 

  • To assign troops to a military post. 

noun
  • The troops stationed at such a post. 

  • A permanent military post. 

  • Occupants. 

  • A military unit, nominally headed by a colonel, equivalent to a USAF support wing, or an army regiment. 

mobilise

verb
  • To assemble troops and their equipment in a coordinated fashion so as to be ready for war. 

  • To make something mobile. 

  • To become made ready for war. 

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