cadre vs corps

cadre

noun
  • A small group of people specially trained for a particular purpose or profession. 

  • The framework or skeleton upon which a new regiment is to be formed; the officers of a regiment forming the staff. 

  • The core of a managing group, or a member of such a group. 

  • A frame or framework. 

corps

noun
  • An organized group of people united by a common purpose. 

  • A battlefield formation composed of two or more divisions. 

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