arsenal vs supply depot

arsenal

noun
  • A military establishment for the storing, development, manufacturing, testing, or repairing of arms, ammunition, and other war materiel; an armoury. 

  • A store or supply of anything. 

  • Any supply of aid collected to prepare a person or army for hardship 

  • A stock of weapons, especially all the weapons that a nation possesses. 

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 arsenal and supply depot occurred in a corpus of books? (source: Google Ngram Viewer )