Army vs Cap

Army

name

  • A sports team representing the US Military Academy at West Point. 

  • Hexagram 7 of the I Ching (䷆) 

Cap

name

  • A nickname for the captain of a team, ship, etc. 

  • A nickname for a man generally. 

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