commander in chief vs department

commander in chief

noun
  • Supreme commander of the armed forces of an entire country. 

department

noun
  • A military subdivision of a country 

  • One of the divisions of instructions 

  • A territorial division; a district; especially, in France, one of the districts into which the country is divided for governmental purposes, similar to a county in the UK and in the USA. France is composed of 101 départements organized in 18 régions, each department is divided into arrondissements, in turn divided into cantons. 

  • A distinct course of life, action, study, or the like. 

  • A specified aspect or quality. 

  • A part, portion, or subdivision. 

  • One of the principal divisions of executive government 

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