Columbia subject headings:
Peace--Religious aspects--Congresses.
Harvard subject headings:
Catholic Church--Doctrines.
Catholic Church--United States--Pastoral letters and charges.
Just war doctrine.
Nuclear warfare--Religious aspects--Catholic Church
Peace--Religious aspects--Catholic Church
Princeton subject headings:
Catholic Church--Doctrines.
Catholic Church--United States--Pastoral letters and charges.
Just war doctrine.
Nuclear warfare--Religious aspects--Catholic Church.
Peace--Religious aspects--Catholic Church.