call to arms vs levy

call to arms

noun
  • An appeal to fight or to engage in conflict. 

  • An appeal to undertake a particular course of action or to support a specific cause; a call to action. 

levy

verb
  • To raise, as a siege. 

  • To raise or collect by assessment; to exact by authority. 

  • To erect, build, or set up; to make or construct; to raise or cast up. 

  • To draft someone into military service. 

  • To raise; to collect; said of troops, to form into an army by enrollment, conscription. etc. 

  • To wage war. 

  • To impose (a tax or fine) to collect monies due, or to confiscate property. 

noun
  • The tax, property or people so levied. 

  • The act of levying. 

How often have the words call to arms and levy occurred in a corpus of books? (source: Google Ngram Viewer )