armament vs supply depot

armament

noun
  • A body of forces equipped for war. 

  • The process of building up military capacity. 

  • Any equipment for resistance. 

  • All the cannon and small arms collectively, with their equipments, belonging to a ship or a fortification. 

supply depot

noun
  • A facility utilized by armies to store battlefield supplies temporarily on or near the front lines until they can be distributed to army units. 

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