demobilize vs disperse

demobilize

verb
  • To disband troops, or remove them from a war footing. 

  • To release someone from military duty, especially after a war. 

disperse

verb
  • To break up and disappear; to dissipate. 

  • To scatter in different directions. 

  • To disseminate. 

  • To separate rays of light, etc., according to wavelength; to refract. 

  • To distribute throughout. 

adj
  • Scattered or spread out. 

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