demobilize vs disturb

demobilize

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

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

disturb

verb
  • to divert, redirect, or alter by disturbing. 

  • to confuse a quiet, constant state or a calm, continuous flow, in particular: thoughts, actions or liquids. 

  • to have a negative emotional impact; to cause emotional distress or confusion. 

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