intercession vs peacebuilding

intercession

noun
  • The act of intervening or mediating between two parties. 

  • A prayer to God on behalf of another person. 

peacebuilding

noun
  • The reconstruction of physical and societal institutions after a conflict 

  • The creation of peace or the conditions for peace. 

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