(n.) The act or process of pacifying, or of making peace between parties at variance; reconciliation.

Pax Dei Pax Romana Peace of God abatement allayment alleviation armistice assuagement blunting breathing spell buffer zone calming cease-fire cooling-off period damping deadening demilitarized zone demulsion diminution dulcification dulling easing falling-off hollow truce hushing leniency lessening letdown letup lightening loosening lulling mitigation modulation modus vivendi mollification neutral territory palliation pax in bello peace quietening quieting reduction relaxation remission slackening softening soothing stand-down subduement suspension of hostilities tempering temporary arrangement tranquilization treaty of peace truce